Tasks - Conditional Statements

[akash-coded]

1. Write a program to find whether a given year is a leap year or not.

2. Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.

3. WAP to find the largest and smallest of three numbers.

4. WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

5. WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.

6. WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.

7. WAP to take a single-digit positive number as input and print it in words.

[sruthi-15-sketch]

Write a program to find whether a given year is a leap year or not.
`import java.util.Scanner;

public class LeapYear {
public static void main(String[] args) {
int year;
System.out.println("Enter the year : ");
Scanner sc = new Scanner(System.in);
year = sc.nextInt();

    if (((year % 4 == 0) && (y2016ear % 100 != 0)) || (year % 400 == 0))
        System.out.println(year + " is a leap year");
    else
        System.out.println(year + " is not a leap year");
}

}`

Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.
import java.util.Scanner;

public class Dependent {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the m value : ");
int m = sc.nextInt();
int n;
if (m > 0)
n = 1;
else if (m == 0)
n = 0;
else
n = -1;
System.out.println("n value : " + n);
}
}

WAP to find the largest and smallest of three numbers.
`import java.util.Scanner;

public class LargestSmallest {
public static void main(String[] args) {
System.out.println("Enter a,b,c values : ");
Scanner sc = new Scanner(System.in);
int a = sc.nextInt();
int b = sc.nextInt();
int c = sc.nextInt();

    if (a > b && a > c)
        System.out.println(a + " is the largest");
    else if (b > a && b > c)
        System.out.println(b + " is the largest");
    else
        System.out.println(c + " is the largest");
    if (a < b && a < c)
        System.out.println(a + " is the Smallest");
    else if (b < a && b < c)
        System.out.println(b + " is the Smallest");
    else
        System.out.println(c + " is the Smallest");
}

}`

WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.
`import java.util.Scanner;

public class Quadrant {
public static void main(String[] args) {
System.out.println("Enter the coordinates x , y : ");
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int y = sc.nextInt();

    if (x > 0 && y > 0)
        System.out.println(x + " " + y + " " + "belongs to quadrant-1");
    else if (x < 0 && y > 0)
        System.out.println(x + " " + y + " " + "belongs to quadrant-2");
    else if (x < 0 && y < 0)
        System.out.println(x + " " + y + " " + "belongs to quadrant-3");
    else
        System.out.println(x + " " + y + " " + "belongs to quadrant-4");
}

}`

WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.
`import java.util.Scanner;

public class Grade {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the physics,chemistry,math marks : ");
int phy = sc.nextInt();
int chem = sc.nextInt();
int math = sc.nextInt();
int tot = phy + math + chem;
if (tot >= 270)
System.out.println("The grade is A");
else if (tot >= 220)
System.out.println("The grade is B");
else if (tot >= 170)
System.out.println("The grade is C");
else if (tot >= 110)
System.out.println("The grade is D");
else
System.out.println("Fail");
}
}`

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.
`import java.util.*;

public class Triangle {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
double a, b, c;
System.out.print("Enter first side: ");
a = sc.nextDouble();
System.out.print("Enter second side: ");
b = sc.nextDouble();
System.out.print("Enter third side: ");
c = sc.nextDouble();
if (a + b > c && b + c > a && a + c > b) {
if (a == b && b == c)
System.out.println("Equilateral Triangle.");
else if (a == b || b == c || c == a)
System.out.println("Isosceles Triangle.");
else
System.out.println("Scalene Triangle.");
} else
System.out.println("Triangle not possible.");
}
}`

WAP to take a single-digit positive number as input and print it in words.
`import java.util.Scanner;

public class NumToWord {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Select a number ranging from 0 -9 : ");
int num = sc.nextInt();
switch (num) {
case 0:
System.out.println("The number selected is zero");
break;
case 1:
System.out.println("The number selected is one");
break;
case 2:
System.out.println("The number selected is two");
break;
case 3:
System.out.println("The number selected is three");
break;
case 4:
System.out.println("The number selected is four");
break;
case 5:
System.out.println("The number selected is five");
break;
case 6:
System.out.println("The number selected is six");
break;
case 7:
System.out.println("The number selected is seven");
break;
case 8:
System.out.println("The number selected is eight");
break;
case 9:
System.out.println("The number selected is nine");
break;
default:
System.out.println("Invalid number");
break;
}
}
}`

[RohitNaikade1]

1. Write a program to find whether a given year is a leap year or not.

`
import java.util.*;
public class leapYear {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);

    System.out.println("Enter Year:");
    int year=s1.nextInt();

    if(year%4==0){
        if(year%100==0){
            if(year%400==0){
                System.out.println("leap year!");
            }else{
                System.out.println("Not a leap year!");
            }
        }else{
            System.out.println("leap year!");
        }
    }else{
        System.out.println("Not a leap year!");
    }
}

}

`

2. Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.

`
import java.util.*;
public class nAndM{
public static void main(String[] args){
Scanner s1 = new Scanner(System.in);

    System.out.println("Enter value of m: ");
    int m=s1.nextInt();
    int n=0;

    if(m>0){
        n=1;
    }else if(m==0){
        n=0;
    }else{
        n=-1;
    }


    System.out.println("value of n is: "+n);
}

}
`

3. WAP to find the largest and smallest of three numbers.

`
import java.util.*;
public class smallestAndLargest {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);
int num1=s1.nextInt();
int num2=s1.nextInt();
int num3=s1.nextInt();

    int small,largest;
    if(num1 > num2 && num1>num3){
        largest = num1;
        if(num2>num3){
            small =num3;
        }else{
            small = num2;
        }
    }else if(num2 > num1 && num2>num3){
        largest = num2;
        if(num1>num3){
            small =num1;
        }else{
            small = num3;
        }
    }else{
        largest = num3;
        if(num1>num2){
            small =num2;
        }else{
            small = num1;
        }
    }

    System.out.println("Small Number: " + small);
    System.out.println("Large Number: " + largest);
}

}

`

4. WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.
   `
   import java.util.*;

public class detectQuadrant {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);
int a=s1.nextInt();
int b=s1.nextInt();

    if(a>0 && b>0){
        System.out.println("Lies in first quadrant!");
    }else if(a<0 && b>0){
        System.out.println("Lies in second quadrant!");
    }else if(a<0 && b<0){
        System.out.println("Lies in third quadrant!");
    }else{
        System.out.println("Lies in fourth quadrant!");
    }
}

}

`

5. WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.
   `
   import java.util.*;
   public class detectGrade {
   public static void main(String[] args) {
   Scanner s1 = new Scanner(System.in);

    System.out.println("Enter chemistry marks:");
    int chem=s1.nextInt();
    System.out.println("Enter physics marks:");
    int phy=s1.nextInt();
    System.out.println("Enter maths marks:");
    int maths=s1.nextInt();

    int total=(phy+chem+maths)/3;

    if(total>90){
        System.out.println("Grade-A");
    }else if(total>80 && total<=90){
        System.out.println("Grade-B");
    }else if(total>70 && total<=80){
        System.out.println("Grade-C");
    }else if(total>60 && total<=70){
        System.out.println("Grade-D");
    }else{
        System.out.println("Fail");
    }
}

}

`

6. WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.
   `
   import java.util.*;
   public class detectTriangle {
   public static void main(String[] args) {
   Scanner s1 = new Scanner(System.in);
   System.out.println("Enter first side:");
   int f1=s1.nextInt();
   System.out.println("Enter second side:");
   int f2=s1.nextInt();
   System.out.println("Enter third side:");
   int f3=s1.nextInt();

    if(f1==f2 && f2==f3 && f1==f3){
        System.out.println("Equilateral triangle!");
    }else if(f1!=f2 && f2!=f3 && f1!=f3){
        System.out.println("Scalene triangle!");
    }else{
        System.out.println("Isosceles triangle!");
    }
}

}

`

7. WAP to take a single-digit positive number as input and print it in words.

`
import java.util.*;

public class printWord {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);

    System.out.println("Enter number(0-10):");
    int num = s1.nextInt();

    switch (num) {
        case 0:
            System.out.println("Zero");
            break;
        case 1:
            System.out.println("One");
            break;
        case 2:
            System.out.println("Two");
            break;
        case 3:
            System.out.println("Three");
            break;
        case 4:
            System.out.println("four");
            break;
        case 5:
            System.out.println("five");
            break;
        case 6:
            System.out.println("six");
            break;
        case 7:
            System.out.println("seven");
            break;
        case 8:
            System.out.println("eight");
            break;
        case 9:
            System.out.println("nine");
            break;
        case 10:
            System.out.println("ten");
            break;
        default:
            System.out.println("enter number between 1-10");

    }
}

}

`

[mkaifahmed]

leap year

`import java.util.Scanner;

public class Leap {

static boolean isLeap(int year) {
    if (year % 4 == 0) {

        if (year % 100 == 0) {

            return (year % 400 == 0);

        } else
            return true;
    } else
        return false;

}

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter year: ");
    int year = scanner.nextInt();

    if (isLeap(year)) {
        System.out.println(year + " is a leap year.");
    } else {
        System.out.println(year + " is not a leap year.");
    }
    scanner.close();

}

}
`

Value of N

`import java.util.Scanner;

public class ValueOfN {
public static void main(String[] args) {
System.out.println("Enter m: ");
Scanner scanner = new Scanner(System.in);
int m = scanner.nextInt();
if (m > 0) {
System.out.println("ValueOf n is 1");
} else {
if (m == 0) {
System.out.println("ValueOf n is 0");
} else {
System.out.println("ValueOf n is -1");
}
}
scanner.close();
}

}
`

Max and Min of 3

`import java.util.Scanner;

public class MaxnMin {
static int largest(int a, int b, int c) {
if (a >= b && a >= c) {
return a;
} else {
if (b >= a && b >= c) {
return b;
} else {
return c;
}
}
}

static int smallest(int a, int b, int c) {
    if (a <= b && a <= c) {
        return a;
    } else {
        if (b <= a && b <= c) {
            return b;
        } else {
            return c;
        }
    }

}

public static void main(String[] args) {

    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter 3 numbers :");
    int first = scanner.nextInt();
    int second = scanner.nextInt();
    int third = scanner.nextInt();
    System.out.println("largest no : " + largest(first, second, third) + "\n" + "smallest no : "
            + smallest(first, second, third));
    scanner.close();
}

}`

Coordinate Points

`import java.util.Scanner;

public class Quads {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("enter coordinates x and y");
int x = scanner.nextInt();
int y = scanner.nextInt();
if (x > 0 && y > 0) {
System.out.println("1st q");
} else {
if (x < 0 && y > 0) {
System.out.println("2nd q");
} else {
if (x < 0 && y < 0) {
System.out.println("3rd q");
} else {
if (x > 0 && y < 0) {
System.out.println("4th q");
} else {
System.out.println("origin");
}
}
}
}
scanner.close();
}
}
`

Student Grade

`import java.util.Scanner;

public class Student {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter Marks in physics chem and maths");
int p = scanner.nextInt();
int c = scanner.nextInt();
int m = scanner.nextInt();
int total = p + c + m;
if (total > 90) {
System.out.println("grade A");
} else {
if (total > 80) {
System.out.println("grade B");
} else {
if (total > 70) {
System.out.println("grade C");
} else {
if (total >= 60) {
System.out.println("grade D");
} else {
System.out.println("fail");
}
}
}
}
scanner.close();
}
}
`

Triangles

`import java.util.Scanner;

public class Triangle {
public static void main(String[] args) {
System.out.println("enter sides of triangle: ");
Scanner scanner = new Scanner(System.in);
int a = scanner.nextInt();
int b = scanner.nextInt();
int c = scanner.nextInt();
if (a == b && b == c) {
System.out.println("equilateral");
} else {
if (a != b && b != c) {
System.out.println("scalen");
} else {
System.out.println("isosceles");
}
}
scanner.close();
}

}
`

Number in Words

`import java.util.Scanner;

public class NumInWords {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("enter a single digit number ");
int num = scanner.nextInt();
switch (num) {
case 0:
System.out.println("zero");
break;
case 1:
System.out.println("one");
break;
case 2:
System.out.println("two");
break;
case 3:
System.out.println("three");
break;
case 4:
System.out.println("four");
break;
case 5:
System.out.println("five");
break;
case 6:
System.out.println("six");
break;
case 7:
System.out.println("seven");
break;
case 8:
System.out.println("eight");
break;
case 9:
System.out.println("nine");
break;
default:
System.out.println("invalid number");
}
scanner.close();
}
}
`

[Sarfinaa]

Write a program to find whether a given year is a leap year or not.
`import java.util.Scanner;

public class Leapyear {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
int year = s.nextInt();
if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0)
System.out.println("Leap Year: " + year);
else
System.out.println("Not a Leap Year");
}
}**Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.**import java.util.Scanner;

public class DisplayN {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.print("Enter value of n: ");
int m = s.nextInt();
int n;
if (m > 0)
n = 1;
else if (m == 0)
n = 0;
else
n = -1;
System.out.println("Value of n: " + n);
}

}
**WAP to find the largest and smallest of three numbers.**import java.util.Scanner;

public class LargestAndSmallest {
public static int max(int n1, int n2, int n3) {
int max = n1;
if (max < n2) {
if (n2 > n3)
max = n2;
else
max = n3;
} else if (max < n3) {
max = n3;
}
return max;
}

public static int min(int n1, int n2, int n3) {
    int min = n1;
    if (n2 < min) {
        if (n2 < n3)
            min = n2;
        else
            min = n3;
    } else if (n3 < min) {
        min = n3;
    }
    return min;
}

public static void main(String[] args) {
    Scanner s = new Scanner(System.in);
    System.out.print("Enter the 3 no's: ");
    int n1 = s.nextInt();
    int n2 = s.nextInt();
    int n3 = s.nextInt();
    System.out.println("Max Value:" + max(n1, n2, n3));
    System.out.println("Min Value:" + min(n1, n2, n3));

}

}
**WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.**import java.util.Scanner;

public class Coordinate {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.print("Enter the value of x and y coordinate:");
int x = s.nextInt();
int y = s.nextInt();
int quad = 0;
if (x > 0) {
if (y > 0)
quad = 1;
else
quad = 4;
} else {
if (y > 0)
quad = 2;
else
quad = 3;
}
System.out.println("(" + x + "," + y + ")" + " present in " + quad + " quadrant");
}

}
**WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.**import java.util.Scanner;

public class Marks {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.print("Enter the marks of maths,physics and chemistry(out of 100): ");
int n1 = s.nextInt();
int n2 = s.nextInt();
int n3 = s.nextInt();
int total = n1 + n2 + n3;
int gradeVal = total / 3;
char grade;
if (gradeVal >= 90)
grade = 'A';
else if (gradeVal >= 80)
grade = 'B';
else if (gradeVal >= 70)
grade = 'C';
else
grade = 'D';
System.out.println("Total marks:" + total);
System.out.println("Grade:" + grade);
}

}
**WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.**
import java.util.Scanner;

public class Triangle {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.print("Enter Three Sides of Triangle:");
int s1 = s.nextInt();
int s2 = s.nextInt();
int s3 = s.nextInt();
if (s1 == s2 && s2 == s3) {
System.out.println("Equilateral triangle!");
} else if (s1 != s2 && s2 != s3 && s1 != s3) {
System.out.println("Scalene triangle!");
} else {
System.out.println("Isosceles triangle!");
}
}
}**WAP to take a single-digit positive number as input and print it in words.**import java.util.Scanner;

public class PrintNumber {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.print("Enter number from 0-9:");
int num = s.nextInt();
String snum = "";
switch (num) {
case 0:
snum = "Zero";
break;
case 1:
snum = "One";
break;
case 2:
snum = "Two";
break;
case 3:
snum = "Three";
break;
case 4:
snum = "Four";
break;
case 5:
snum = "Five";
break;
case 6:
snum = "Six";
break;
case 7:
snum = "Seven";
break;
case 8:
snum = "Eight";
break;
case 9:
snum = "Nine";
break;
default:
snum = "Number out of range!!";

    }
    System.out.println(num + "->" + snum);
}

}`

[Shubhi27]

`
Write a program to find whether a given year is a leap year or not.
import java.util.Scanner;

public class LeapYear {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter Year");
int year = sc.nextInt();
if ((year % 400 == 0) || ((year % 4 == 0) && (year % 100 != 0))) {

        System.out.println(year + " is a Leap Year");
    } else {
        System.out.println(year + " is not a Leap Year");
    }
}

}

Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.
import java.util.Scanner;

public class Values {
public static void main(String[] args) {
int n;
Scanner sc = new Scanner(System.in);
System.out.println("enter the value of m ");
int m = sc.nextInt();
if (m > 0) {
n = 1;
System.out.println("value of n is " + n);
} else if (m == 0) {
n = 0;
System.out.println("value of n is " + n);
} else {
n = -1;
System.out.println("value of n is " + n);
}
}
}

WAP to find the largest and smallest of three numbers.
import java.util.Scanner;

public class LargestSmallest {

static int largest(int first, int second, int third) {
    int max = first;
    if (second > max) {
        max = second;
    }
    if (third > max) {
        max = third;
    }
    return max;
}

static int smallest(int first, int second, int third) {
    int min = first;
    if (second < min) {
        min = second;
    }
    if (third < min) {
        min = third;
    }
    return min;
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter first number :");
    int first = sc.nextInt();
    System.out.println("Enter second number :");
    int second = sc.nextInt();
    System.out.println("Enter third number :");
    int third = sc.nextInt();
    System.out.println("largest of three numbers is: " + largest(first, second, third));
    System.out.println("smallest of three numbers is: " + smallest(first, second, third));

}

}

WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.
import java.util.Scanner;

public class Quadrant {
static String findQuadrant(int x, int y) {
if (x > 0 && y > 0)
return "First quadrant";

    else if (x < 0 && y > 0)
        return "Second quadrant";

    else if (x < 0 && y < 0)
        return " Third quadrant";

    else if (x > 0 && y < 0)
        return "Fourth quadrant";

    else if (x == 0 && y > 0)
        return "positive y axis";

    else if (x == 0 && y < 0)
        return "negative y axis";

    else if (y == 0 && x < 0)
        return "negative x axis";

    else if (y == 0 && x > 0)
        return "positive x axis";

    else
        return "origin";
}

public static void main(String[] args) {
    int x, y;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter the x coordinate : ");
    x = sc.nextInt();
    System.out.println("Enter the y coordinate : ");
    y = sc.nextInt();

    System.out.println(x + "," + y + " is at " + findQuadrant(x, y));

}

}

WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.
import java.util.Scanner;

public class Grades {
private static char findGrade(int total) {
if (total >= 90)
return 'A';
else if (total >= 80)
return 'B';
else if (total >= 70)
return 'C';
else if (total >= 60)
return 'D';
else
return 'F';
}

public static void main(String[] args) {
    int phy, chem, maths;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter physics marks :");
    phy = sc.nextInt();
    System.out.println("Enter chemistry marks :");
    chem = sc.nextInt();
    System.out.println("Enter maths marks :");
    maths = sc.nextInt();
    int total = (phy + chem + maths) / 3;
    System.out.println("Total marks are :" + total);
    System.out.println("Grade is " + findGrade(total));
}

}

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.
import java.util.Scanner;

public class Triangle {
private static String findType(int a, int b, int c) {
if (a == b && b == c)
return "Equilateral";
else if (a != b && b != c && a != c)
return "Scalene";
else
return "Isosceles";
}

public static void main(String[] args) {
    int a, b, c;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter the first side:");
    a = sc.nextInt();
    System.out.println("Enter the second side:");
    b = sc.nextInt();
    System.out.println("Enter the third side:");
    c = sc.nextInt();

    System.out.println("Triangle is " + findType(a, b, c));
}

}

WAP to take a single-digit positive number as input and print it in words.
import java.util.Scanner;

public class NumberToWords {
static String numToWord(int n) {
switch (n) {
case 0:
return "Zero";
case 1:
return "One";
case 2:
return "Two";
case 3:
return "Three";
case 4:
return "Four";
case 5:
return "Five";
case 6:
return "Six";
case 7:
return "Seven";
case 8:
return "Eight";
case 9:
return "Nine";
default:
return "Invalid Input";

    }

}

public static void main(String[] args) {
    int number;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter the number :");
    number = sc.nextInt();
    System.out.println(number + " in word is: " + numToWord(number));
}

}

`

[Gaurav-Joshi-31]

task 1 leap year:

`import java.util.Scanner;

public class LeapYear {
private static boolean isLeapYear(int year) {
return ((year % 400 == 0) || ((year % 4 == 0) && (year % 100 != 0)));
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.print("Enter year:");
    int year = sc.nextInt();

    if (isLeapYear(year))
        System.out.println(year + " is a leap year");
    else
        System.out.println(year + " is not a leap year");

}

}
`

Task 2-

`public class ValueOfN {
private static int value(int m) {
if (m > 0)
return 1;
else if (m == 0)
return 0;
else
return -1;
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int m = sc.nextInt();
    int n = value(m);
    System.out.println(n);

}

}
`

Task 3:

`
public class LargestSmallest {
private static int largest(int first, int second, int third) {
int max = first;
if (second > max) {
max = second;
}
if (third > max) {
max = third;
}
return max;
}

private static int smallest(int first, int second, int third) {
    int min = first;
    if (second < min) {
        min = second;
    }
    if (third < min) {
        min = third;
    }
    return min;
}

public static void main(String[] args) {
    int a, b, c;
    Scanner sc = new Scanner(System.in);

    System.out.println("Enter the first number:");
    a = sc.nextInt();
    System.out.println("Enter the second number:");
    b = sc.nextInt();
    System.out.println("Enter the third number:");
    c = sc.nextInt();

    System.out.println("Largest number is: " + largest(a, b, c));
    System.out.println("Smallest number is: " + smallest(a, b, c));
}

}

`

Task 4:

`
public class Quadrant {
static String findQuadrant(int x, int y) {
if (x > 0 && y > 0)
return "First quadrant";

    else if (x < 0 && y > 0)
        return "Second quadrant";

    else if (x < 0 && y < 0)
        return " Third quadrant";

    else if (x > 0 && y < 0)
        return "Fourth quadrant";

    else if (x == 0 && y > 0)
        return "positive y axis";

    else if (x == 0 && y < 0)
        return "negative y axis";

    else if (y == 0 && x < 0)
        return "negative x axis";

    else if (y == 0 && x > 0)
        return "positive x axis";

    else
        return "origin";
}

public static void main(String[] args) {
    int x, y;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter the x coordinate :");
    x = sc.nextInt();
    System.out.println("Enter the y coordinate :");
    y = sc.nextInt();

    System.out.println(x + "," + y + " lies at " + findQuadrant(x, y));

}

}

`
Task 5:

`
public class Grades {
private static char findGrade(int total) {
if (total >= 90)
return 'A';
else if (total >= 80)
return 'B';
else if (total >= 70)
return 'C';
else if (total >= 60)
return 'D';
else
return 'F';
}

public static void main(String[] args) {
    int phy, chem, maths;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter physics marks :");
    phy = sc.nextInt();
    System.out.println("Enter chemistry marks :");
    chem = sc.nextInt();
    System.out.println("Enter maths marks :");
    maths = sc.nextInt();
    int total = phy + chem + maths;
    System.out.println("Total marks are :" + total);
    System.out.println("Grade is " + findGrade(total / 3));
}

}

`
Task 6:

`
public class Triangle {
private static String findType(int a, int b, int c) {
if (a == b && b == c)
return "Equilateral";
else if (a != b && b != c && a != c)
return "Scalene";
else
return "Isosceles";
}

public static void main(String[] args) {
    int a, b, c;
    Scanner sc = new Scanner(System.in);

    System.out.println("Enter the first side:");
    a = sc.nextInt();
    System.out.println("Enter the second side:");
    b = sc.nextInt();
    System.out.println("Enter the third side:");
    c = sc.nextInt();
    System.out.println("Triangle is " + findType(a, b, c));
}

}
`

Task 7:

`
public class NumberToWords {
private static String numToWord(int n) {
switch (n) {
case 0:
return "Zero";
case 1:
return "One";
case 2:
return "Two";
case 3:
return "Three";
case 4:
return "Four";
case 5:
return "Five";
case 6:
return "Six";
case 7:
return "Seven";
case 8:
return "Eight";
case 9:
return "Nine";
default:
return "Invalid Input";

    }

}

public static void main(String[] args) {
    int number;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter the number :");
    number = sc.nextInt();
    System.out.println(number + ":  " + numToWord(number));
}

}

`

[Ashwesh09]

1. Write a program to find whether a given year is a leap year or not.

import java.util.Scanner;
public class LeapYear {
    boolean checkYear(long yr)
    {
        if (yr % 400 == 0)return true;
        if (yr % 100 == 0)return false;
        if (yr % 4 == 0)return true;
        return false;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        LeapYear ly =new LeapYear();
        System.out.print("Enter year: ");
        long yr = in.nextLong();
        if (ly.checkYear(yr))
            System.out.println(yr + " is a leap year.");
        else System.out.println(yr + " is not a leap year.");
        in.close();
    }
    
}

2. Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.

import java.util.Scanner;
public class Comparator {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int m, n;
        String state;
        System.out.print("Enter m:");
        m = in.nextInt();
        if (m > 0) {
            n = 1;
            state = "positive";
        } 
        else if (m < 0) {
            n = -1;
            state = "negative";
        } 
        else {
            n = 0;
            state = "zero";
        }
        System.out.println("m was " + state + " hence n is " + n+".");
    }
}

3. WAP to find the largest and smallest of three numbers.

import java.util.Scanner;

public class SmallestAndLargest {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Enter Numbers: ");
        int a = in.nextInt(), b = in.nextInt(), c = in.nextInt();
        int largest = a,smallest = b;
        if (a > b && a > c) largest = a;
        else if (a < b && a < c) smallest = a;
        if (b > a && b > c) largest = b;
        else if (b < a && b < c) smallest = b;
        if (c > a && c > b) largest = c;
        else if (c < a && c < b) smallest = c;
        System.out.println(largest + " is the largest number");
        System.out.println(smallest + " is the smallest number");
    }
}

4. WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

import java.util.Scanner;

public class CoordinateCheck {
    public String checkCoordinates(int x, int y) {
        String res = "Invalid input coordinates";
        if (x > 0 && y > 0)
            res = "First coordinate";
        else if (x < 0 && y > 0)
            res = "Second coordinate";
        else if (x < 0 && y < 0)
            res = "Third coordinate";
        else if (x > 0 && y < 0)
            res = "Fourth coordinate";
        else if (x == 0 && y == 0)
            res = "Origin";
        else if (x == 0)
            res = "y-axis";
        else if (y == 0)
            res = "x-axis";
        return res;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        CoordinateCheck cc = new CoordinateCheck();
        System.out.print("Enter x-axis coordinates:");
        int x = scanner.nextInt();
        System.out.print("Enter y-axis coordinates:");
        int y = scanner.nextInt();
        System.out.println("Point (" + x + "," + y + ") is in " + cc.checkCoordinates(x, y) + ".");
    }
    
}

5. WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.

import java.util.Scanner;

public class GradeCheck {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter Marks in Physics:");
        int phyM = in.nextInt();
        System.out.print("Enter Marks in Chemistry:");
        int chemM = in.nextInt();
        System.out.print("Enter Marks in Maths:");
        int mathsM = in.nextInt();
        String grade = "invalid choice";
        int totalMarks = phyM + chemM + mathsM;
        double totalM = (totalMarks / 300) * 100;
        if (totalM <= 100 && totalM > 90)
            grade = "A";
        else if (totalM <= 90 && totalM >= 80)
            grade = "B";
        else if (totalM < 80 && totalM >= 70)
            grade = "C";
        else if (totalM < 70 && totalM >= 60)
            grade = "D";
        else if (totalM < 60 && totalM >= 50)
            grade = "E";
        else if (totalM < 50 && totalM >= 0)
            grade = "F";
        System.out.println("Student has " + totalMarks + " marks and has " + grade + " grade."); 
    }
    
}

6. WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.

import java.util.Scanner;

public class TriangleType {
    public String TriangleTypeCheck(int a, int b, int c) {
        if (a == b && b == c)
            return "equvivalent triangle";
        else if (a == b || b == c || c == a)
            return "Isoceles triangle";
        return "Scalane triangle";
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        TriangleType tt = new TriangleType();
        System.out.println("Enter sides of triangle:");
        int a = sc.nextInt(), b = sc.nextInt(), c = sc.nextInt();
        System.out.println("Traingle with sides "+a+","+b+" and "+c+" is "+tt.TriangleTypeCheck(a,b,c)+".");
    }
    
}

7. WAP to take a single-digit positive number as input and print it in words.

import java.util.Scanner;

public class NumberToAlphabet {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter any number b/w 0-9:");
        int i = in.nextInt();
        if( i < 0 || i >= 10)
            System.out.println("Invalid choice.");
        else 
        {
            System.out.println(i + " is written as:");
            switch (i) {
                    case 0:
                        System.out.print("Zero");
                        break;
                    case 1:
                        System.out.print("One");
                        break;
                    case 2:
                        System.out.print("Two");
                        break;
                    case 3:
                        System.out.print("Three");
                        break;
                    case 4:
                        System.out.print("Four");
                        break;
                    case 5:
                        System.out.print("Five");
                        break;
                    case 6:
                        System.out.print("Six");
                        break;
                    case 7:
                        System.out.print("Seven");
                        break;
                    case 8:
                        System.out.print("Eight");
                        break;
                    case 9:
                        System.out.print("Nine");
                        break;
                    default:
                        System.out.println("Invalid choice");
            }
        }
        in.close();
    }
    
}

[preeti-max]

`TASK1:
import java.util.*;
public class Task1 {
public static void main(String args[]) {
Scanner sc=new Scanner(System.in);

    int year=sc.nextInt();
if(((year % 4 == 0) && (year % 100 != 0)) ||(year % 400 == 0)) 
{  
    System.out.println("leap year");  
} else {  
    System.out.println(" not a leap year");  
}  


  
}

}

TASK2:
import java.util.Scanner;

public class Task2 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int m = sc.nextInt();
int n = 0;
if (m > 0) {
n = 1;
} else if (m == 0) {
n = 0;
} else {
n = -1;
}
System.out.println("The value of n is: "+ n);
}

}

TASK3:
import java.util.Scanner;
public class Task3 {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
int a = sc.nextInt();
int b=sc.nextInt();
int c=sc.nextInt();
int small=Math.min(a,Math.min(b,c));
int large=Math.max(a,Math.max(b,c));
System.out.println("Smallest is: "+small);
System.out.println("Largestt is: "+large);

}

}

TASK4:
import java.util.Scanner;
public class Test4 {
public static void main(String args[]) {
System.out.println("enter x and y coordinates");
Scanner sc = new Scanner(System.in);
int x=sc.nextInt();
int y=sc.nextInt();
if (x > 0 && y > 0)
System.out.println("First quadrant");

    else if (x < 0 && y > 0)
        System.out.println("Second quadrant");

    else if (x < 0 && y < 0)
        System.out.println("Third quadrant");

    else if (x > 0 && y < 0)
        System.out.println("Fourth quadrant");
    else if(x==0 && y==0){
        System.out.println("Origin");
    }


  
}

}

TASK5:
import java.util.*;
public class Test5 {
public static void main(String args[]) {

  Scanner sc=new Scanner(System.in);
    int a =sc.nextInt();
    int b=sc.nextInt();
    int c=sc.nextInt();
    int total=a+b+c;
    int p=total/3;
    System.out.println("total marks is: "+total);
    if(p>=90){
        System.out.println("GRADE A");
    }
    else if(p>=80){
        System.out.println("GRADE B");
    }
    else if(p>=70){
        System.out.println("GRADE C");
    }
    else if(p>=60){
        System.out.println("GRADE D");
    }
    else{
        System.out.println("GRADE F");
    }

  
}

}

TASK6:
import java.util.*;
public class Task6 {
public static void main(String args[]) {

  Scanner sc=new Scanner(System.in);
    int a =sc.nextInt();
    int b=sc.nextInt();
    int c=sc.nextInt();

  if(a==b && b==c){
      System.out.println("equilateral traingle");
  }
  else if(a == b || b ==c || c == a ){
      System.out.println("isoceles traingle");
  }
  else{
      System.out.println("scalene traingle");
  }
}

}

TASK7:

import java.util.*;
public class Task7 {
public static void main(String args[]) {
Scanner sc=new Scanner(System.in);
int x=sc.nextInt();
switch(x){
case 0:
System.out.println("Zero");
break;
case 1:
System.out.println("One");
break;
case 2:
System.out.println("Two");
break;
case 3:
System.out.println("Three");
break;
case 4:
System.out.println("Four");
break;
case 5:
System.out.println("Five");
break;
case 6:
System.out.println("Six");
break;
case 7:
System.out.println("Seven");
break;
case 8:
System.out.println("Eight");
break;
case 9:
System.out.println("Nine");
break;
default:
System.out.println("No not between 0 to 9");

  }

}
}
`

[abhiraj2k]

Task 1: Leap Year

import java.util.*;
public class LeapYear {
    public static boolean isLeap(int num){
        if(num % 4 == 0){
            if(num % 100 == 0){
                return num % 400 == 0;
            }else{
                return true;
            }
        }
        return false;
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int num = sc.nextInt();
        System.out.println(isLeap(num));
    }
}

Task 2: Round Off Integers.

import java.util.*;
public class RoundOff {
    public static int round(int num){
        if(num > 0){
            return 1;
        }else if(num<0){
            return -1;
        }else{
            return 0;
        }
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int num = sc.nextInt();
        System.out.println(round(num));
    }
}

Task3: Largest and Smallest of Three Numbers

import java.util.*;
public class LargestSmallest3 {
    public static int largestOfThree(int n1, int n2, int n3){
        return Math.max(Math.max(n1, n2), n3);
    }
    public static int smallestOfThree(int n1, int n2, int n3){
        return Math.min(Math.min(n1, n2),n3);
    }
    public static void main(String[] args) {
        Scanner sc =  new Scanner(System.in);
        int n1 = sc.nextInt();
        int n2 = sc.nextInt();
        int n3 = sc.nextInt();
        System.out.println("Largest : " + largestOfThree(n1, n2, n3));
        System.out.println("Smallest: " + smallestOfThree(n1, n2, n3));
    }
}

Task 4: Find Quadrant

import java.util.*;
public class Coordinate {
    public static int quadrant(int c1, int c2){
        if(c1 > 0 && c2 > 0){
            return 1;
        }else if(c1 > 0 && c2 < 0){
            return 4;
        }else if(c1 < 0 && c2 > 0){
            return 2;
        }else{
            return 3;
        }
    }
    public static void main(String[] args) {
        Scanner sc =  new Scanner(System.in);
        int c1 = sc.nextInt();
        int c2 = sc.nextInt();
        System.out.println("Quadrant No: " + quadrant(c1, c2));
    }
}

Task 5: Marks and Grades

import java.util.*;
public class MarksAndGrades {
    public static String grade(int total){
        total /= 3;
        if(total >= 90){
            return "A";
        }else if(total >= 80){
            return "B";
        }else if(total >= 70){
            return "C";
        }else if(total >= 60){
            return "D";
        }else{
            return "F";
        }
    }
    public static void main(String[] args) {
        Scanner sc =  new Scanner(System.in);
        int total = sc.nextInt() + sc.nextInt() + sc.nextInt();
        System.out.println("Total is: "+ total);
        System.out.println("Grade is: "+grade(total));
    }
}

Task 6: Find Type of Triangle

import java.util.*;
public class TriangleType {
    public static String typeOfTriangle(int s1, int s2, int s3){
        if(s1 == s2 && s2  == s3){
            return "Equilateral";
        }else if(s1 == s2 || s2 == s3 || s1 == s3){
            return "Isosceles";
        }else{
            return "Scalene";
        }
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);    
        int s1 = sc.nextInt();
        int s2 = sc.nextInt();
        int s3 = sc.nextInt();
        System.out.println(typeOfTriangle(s1, s2, s3));
    }
}

Task 7: Digit to Word

import java.util.*;
public class NumToWord {
    public static String toWord(int num){
        switch(num){
            case(1):
                return "One";
            case(2):
                return "Two";
            case(3):
                return "Three";
            case(4):
                return "Four";
            case(5):
                return "Five";
            case(6):
                return "Six";
            case(7):
                return "Seven";
            case(8):
                return "Eight";
            case(9):
                return "Nine";
            default:
                return "Invalid";
        }
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);   
        System.out.println(toWord(sc.nextInt()));
    }
}

[ratnadeepikavuddagiri]

Write a program to find whether a given year is a leap year or not.
`import java.util.Scanner;

public class IsLeapYear {
public static void main(String[] args) {
int y;
System.out.println("enter year : ");
Scanner S = new Scanner(System.in);
y = S.nextInt();
if ((y % 400 == 0) || ((y % 4 == 0) && (y % 100 != 0)))
System.out.println("Leap Year");
else
System.out.println("Non - Leap Year");
}
}
`

Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.
`import java.util.Scanner;

public class DisplayNvalue {

public static void main(String[] args) {
    Scanner S = new Scanner(System.in);
    int m, n = 0;
    System.out.println("Enter m value : ");
    m = S.nextInt();
    if (m > 0)
        n = 1;
    if (m == 0)
        n = 0;
    if (m < 0)
        n = -1;
    System.out.println("N value is : " + n);
}

}
`

WAP to find the largest and smallest of three numbers.
`import java.util.Scanner;

public class LargestAndSmallestOfThreeNumbers {

public static void main(String[] args) {
    int n1, n2, n3;
    Scanner S = new Scanner(System.in);
    System.out.println("Enter 3 Numbers : ");
    n1 = S.nextInt();
    n2 = S.nextInt();
    n3 = S.nextInt();
    int temp = n1 > n2 ? n1 : n2;
    int max = temp > n3 ? temp : n3;
    System.out.println("Largest Number : " + max);
    temp = n1 < n2 ? n1 : n2;
    int min = temp < n3 ? temp : n3;
    System.out.println("Smallest Number : " + min);
}

}
`

WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.
import java.util.Scanner; public class Quadrant { public static void main(String[] args) { Scanner S = new Scanner(System.in); int x,y; System.out.println("enter x, y values : "); x = S.nextInt(); y = S.nextInt(); if(x>0){ if(y>0) System.out.println("("+x+","+y+") belongs to Quadrant 1"); else System.out.println("("+x+","+y+") belongs to Quadrant 4"); } else{ if(y>0) System.out.println("("+x+","+y+") belongs to Quadrant 2"); else System.out.println("("+x+","+y+") belongs to Quadrant 3"); } } }

WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.
`import java.util.Scanner;

public class StudentGrade {
public static void main(String[] args) {
int m, p, c;
Scanner S = new Scanner(System.in);
System.out.println("Enter marks in maths : ");
m = S.nextInt();
System.out.println("Enter marks in physics : ");
p = S.nextInt();
System.out.println("Enter marks in chemistry : ");
c = S.nextInt();
int total = m + p + c;
char grade;
int percentage = (total * 100) / 300;
if (percentage >= 90)
grade = 'A';
else if (percentage >= 80)
grade = 'B';
else if (percentage >= 70)
grade = 'C';
else if (percentage >= 60)
grade = 'D';
else
grade = 'F';
System.out.println("Grade = " + grade);

}

}
`

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.
`import java.util.Scanner;

public class TypesOfTriangles {
public static void main(String[] args) {
Scanner S = new Scanner(System.in);
int s1, s2, s3;
System.out.println("Enter sides of a triangle : ");
s1 = S.nextInt();
s2 = S.nextInt();
s3 = S.nextInt();
if ((s1 == s2) && (s2 == s3))
System.out.println("Equilateral Triangle");
else if ((s1 != s2) && (s2 != s3) && (s3 != s1))
System.out.println("Scalene Triangle");
else
System.out.println("Isoceles Triangle");
}
}
`

WAP to take a single-digit positive number as input and print it in words.
`import java.util.Scanner;

public class DigitInWord {

public static void main(String[] args) {
    Scanner S = new Scanner(System.in);
    int n;
    System.out.println("Enter a digit[0-9] :");
    n = S.nextInt();
    switch (n) {
        case 0:
            System.out.println("Zero");
            break;
        case 1:
            System.out.println("One");
            break;
        case 2:
            System.out.println("Two");
            break;
        case 3:
            System.out.println("Three");
            break;
        case 4:
            System.out.println("Four");
            break;
        case 5:
            System.out.println("Five");
            break;
        case 6:
            System.out.println("Six");
            break;
        case 7:
            System.out.println("Seven");
            break;
        case 8:
            System.out.println("Eight");
            break;
        case 9:
            System.out.println("Nine");
            break;
        default:
            System.out.println("Enter number between 0-9");
    }

}

}
`

[Mrafe]

Question 1
`import java.io.*;

public class Leap {
static boolean leapcheck(int year) {
if (year % 400 == 0)
return true;
else if (year % 100 == 0)
return false;
else if (year % 4 == 0)
return true;
else
return false;
}

public static void main(String[] args) throws IOException {
    BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Enter the year");
    int year = Integer.parseInt(reader.readLine());
    if (leapcheck(year))
        System.out.println("It is a leap year");
    else
        System.out.println("Not a leap year");
}

}
`

Question 2
'import java.util.*;

public class Value {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter the number");
int m = scanner.nextInt();
if (m == 0)
System.out.println("The Value of N is 0");
else if (m > 0)
System.out.println("The Value of N is 1");
else
System.out.println("The Value of N is -1");
scanner.close();
}
}
'

Question 3
'import java.util.Scanner;

public class MaxMin {
static int Min(int a, int b, int c) {
return ((a < b && a < c) ? a : (b < c) ? b : c);
}

static int Max(int a, int b, int c) {
    return ((a > b && a > c) ? a : (b > c) ? b : c);
}

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter three numbers");
    int num1 = scanner.nextInt();
    int num2 = scanner.nextInt();
    int num3 = scanner.nextInt();
    System.out.println("Smallest is " + Min(num1, num2, num3));
    System.out.println("Largest is " + Max(num1, num2, num3));
    scanner.close();
}

}
'

Question 4
'import java.util.Scanner;

public class Quadrant {
static int quadrant(int x, int y) {
if (x > 0) {
return (y > 0) ? 1 : 4;
} else {
return (x < 0) ? 3 : 2;
}
}

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter the coordinates");
    int x = scanner.nextInt();
    int y = scanner.nextInt();
    System.out.println("The coordinates are of " + quadrant(x, y) + " quadrant");
    scanner.close();
}

}
'

Question 5
'import java.util.Scanner;

public class Grade {
static char grade(int marks) {
if (marks >= 90)
return 'A';
else if (marks >= 80)
return 'B';
else if (marks >= 70)
return 'C';
else if (marks >= 60)
return 'D';
else
return 'F';
}

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter the marks");
    int phy = scanner.nextInt();
    int chem = scanner.nextInt();
    int maths = scanner.nextInt();
    int marks = phy + chem + maths;
    System.out.println("The grade is : " + grade(marks));
    scanner.close();
}

}
'

Question 6
'import java.util.Scanner;

public class Triangle {
static String CheckType(int side1, int side2, int side3) {
if (side1 == side2 && side2 == side3)
return "equilateral triangle";
else if (side1 == side2 || side2 == side3 || side3 == side1)
return "isoceless triangle";
else
return "scalene triangle";

}

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter the three sides of the triangle");
    int side1 = scanner.nextInt();
    int side2 = scanner.nextInt();
    int side3 = scanner.nextInt();
    System.out.println("It is a " + CheckType(side1, side2, side3));
    scanner.close();
}

}
'

Question 7
'import java.util.Scanner;

public class NumWord {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter a single digit number");
int num = scanner.nextInt();
switch (num) {
case 0:
System.out.println("Zero");
break;
case 1:
System.out.println("One");
break;
case 2:
System.out.println("Two");
break;
case 3:
System.out.println("Three");
break;
case 4:
System.out.println("Four");
break;
case 5:
System.out.println("Five");
break;
case 6:
System.out.println("Six");
break;
case 7:
System.out.println("Seven");
break;
case 8:
System.out.println("Eight");
break;
case 9:
System.out.println("Nine");
break;
default:
System.out.println("Not a two digit Number");
break;
}
}
}
'

[karunakar23]

`
leap Year

package task4;
import java.util.Scanner;
public class LeapYear {
public static boolean fun(int year){
return ((year%4==0)&&(year%100!=0))||((year%100==0)&&(year%400==0));
}
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
System.out.print("Enter the Year :");
int year=sc.nextInt();
System.out.println(fun(year));
}
}

//Second

package task4;
import java.util.Scanner;
public class Digital {
public static void fun(int m){
if(m>0) System.out.println("The value of n is "+1);
else if(m==0) System.out.println("The value of n is "+0);
else System.out.println("The value of n is "+-1);
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the value Of m ");
int m=scanner.nextInt();
fun(m);
}
}

//third

package task4;
import java.util.Scanner;
public class ThreeNumbers {
public static void fun(int a,int b,int c){
int large=(a>b)?a:b;
System.out.println((large>c)?large:c);
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter value a :");
int a=sc.nextInt();
System.out.print("Enter value b :");
int b=sc.nextInt();
System.out.print("Enter value c :");
int c=sc.nextInt();
fun(a,b,c);
}
}

//fourth

package task4;
import java.util.Scanner;
public class Cordinates {
public static void fun(int a,int b){
if (a > 0 && b > 0) System.out.println("lies in Fourth quadrant");
else if (a < 0 && b > 0) System.out.println("lies in First quadrant");
else if (a < 0 && b < 0) System.out.println("lies in Second quadrant");
else if (a > 0 && b < 0) System.out.println("lies in a Third quadrant");
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the value of a :");
int a=scanner.nextInt();
System.out.print("Enter the value of b :");
int b=scanner.nextInt();
fun(a,b);
}

}

//fifth

package task4;
import java.util.Scanner;
public class Marks {
public static void fun(int a,int b,int c){
System.out.println("Grade of Maths is :"+grade(a));
System.out.println("Grade of Physics is :"+grade(b));
System.out.println("Grade of Chemistry is :"+grade(c));
System.out.println("Total Marks is :"+(a+b+c));
}
public static char grade(int x){
if(x>=90) return 'A';
else if(x>=80) return 'B';
else if(x>=70) return 'C';
else if(x>=60) return 'D';
else return 'F';
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the Marks of Maths :");
int a=scanner.nextInt();
System.out.print("Enter the Marks of Physics :");
int b=scanner.nextInt();
System.out.print("Enter the Marks of Chemistry :");
int c=scanner.nextInt();
fun(a,b,c);
}
}

//sixth

package task4;
import java.util.Scanner;
public class Triangle {
public static void fun(int a,int b,int c){
if(a==b&&b==c) System.out.println("Equilateral Triangle");
else if(a!=b&&b!=c&&a!=c) System.out.println("Scalene Triangle");
else System.out.println("Isosceles Triangle");
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the Value of a :");
int a=scanner.nextInt();
System.out.print("Enter the Value of b:");
int b=scanner.nextInt();
System.out.print("Enter the Value of c:");
int c=scanner.nextInt();
fun(a,b,c);
}
}

//seventh

package task4;

import java.util.Scanner;

public class Spelling {
public static void fun(int a){
switch(a){
case 1:{
System.out.println("One");
break;
}
case 2:{
System.out.println("Two");
break;
}
case 3:{
System.out.println("Three");
break;
}
case 4:{
System.out.println("Four");
break;
}
case 5:{
System.out.println("Five");
break;
}
case 6:{
System.out.println("Six");
break;
}
case 7:{
System.out.println("Seven");
break;
}
case 8:{
System.out.println("Eight");
break;
}
case 9:{
System.out.println("Nine");
break;
}
default:{
System.out.println("Check the number");
}

    }
   
}

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    System.out.print("Enter the Value of a :");
    int a = scanner.nextInt();
    fun(a);
}

}

`

[Gauravgarje]

proggg1

public class prog1{
public static void main(String[] args) {
int year = 2504;

    if(year%400 == 0){
        System.out.println("leap year");
        System.exit(0);
    }
    else if( (year%100 != 0) && (year%4 == 0) )
    {
        System.out.println("leap year");
        System.exit(0);
    }
    else
    {
        System.out.println("Not leap year");
    }
}

}

prog 2
import java.util.Scanner;

public class prog2 {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int m = scan.nextInt();

if(m > 0)
{
    System.out.println("n = 1");
}
else if(m == 0){
    System.out.println("n = 0");
}
else{
    System.out.println("n = -1");
}
}

}

prog 3
import java.util.Scanner;

public class prog3 {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int a = scan.nextInt();
int b = scan.nextInt();
int c = scan.nextInt();

    int largest = a;
    if(largest<b)
        largest = b;
    if(largest<c)
        largest = c;

    System.out.println("largest is = "+largest);

}

}

prog 4
import java.util.Scanner;

public class prog4 {

public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    int X = scan.nextInt();
    int Y = scan.nextInt();

    int quadrant; 
    if(X>0)
        quadrant = (Y>0)?1:4;
    else
        quadrant = (Y>0)?2:3;
        
    System.out.println(quadrant);
}

}

prog 5
public class prog5 {
public static void main(String[] args) {
int P = 56;
int C = 65;
int M = 34;

    int percentage = (P+C+M)/3;
    if(percentage>90)
        System.out.println("Grade = A");
    else if(percentage>80)
        System.out.println("Grade = B");
    else if(percentage>70)
        System.out.println("Grade = C");
    else
        System.out.println("Grade = D");
}

}

prog 6
public class proj6 {
public static void main(String[] args) {
int a = 75;
int b = 25;
int c = 23;

    if( (a==b)&&(b==c)&&(c==a) )
        System.out.println("Equilateral");
    else if( (a==b) || (b==c) || (a==c) )
        System.out.println("Isosceles");
    else
        System.out.println("Scalene");    
}

}

prog7
public class prog7 {
public static void main(String[] args) {
int number = 9;

    switch(number)
    {
        case 1: System.out.println("One"); break;
        case 2: System.out.println("two"); break;
        case 3: System.out.println("thhree"); break;
        case 4: System.out.println("four"); break;
        case 5: System.out.println("five"); break;
        case 6: System.out.println("six"); break;
        case 7: System.out.println("seven"); break;
        case 8: System.out.println("Eigght"); break;
        case 9: System.out.println("Nine"); break;
    }
}

}

[rakeshGit419]

`import java.util.*;
public class checkForLeapYear {

public static boolean check(int year){
    return ((year%4 == 0) && (year%100 != 0)) || (year%400 == 0);
}
public static void main(String[] args){
    Scanner scanner = new Scanner(System.in);
    System.out.print("Enter the year: ");
    int year = scanner.nextInt();

    if(check(year)) System.out.println(year+" is a Leap year");
    else System.out.println(year+" is a Leap year");

}

}

import java.util.*;
public class compare {
public static int compareNum(int m){
return (m>0)?1:((m<0)?-1:0);
}
public static void main(String[] args){
Scanner scanner = new Scanner(System.in);
System.out.print("Enter m value: ");
int m = scanner.nextInt();
System.out.println(compareNum(m));

}

}

import java.util.*;
public class maxMinOfThree {

public static int getMinofThree(int a,int b,int c){
    if(a <= b && a <= c) return a;
    else if( b <= a && b <= c) return b;
    else return c;
}

public static int getMaxofThree(int a,int b,int c){
    if(a >= b && a >= c) return a;
    else if( b >= a && b >= c) return b;
    else return c;
}
public static void main(String[] args){
    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter the a,b,c values: ");
    int a = scanner.nextInt();
    int b = scanner.nextInt();
    int c = scanner.nextInt();

    System.out.println(getMaxofThree(a,b,c));
    System.out.println(getMinofThree(a,b,c));
}

}

public class coordinates {
public static int getCoordinate(int x,int y){
if(x>0)
if(y>0) return 1;
else return 4;
else
if(y>0) return 2;
else return 3;
}
public static void main(String[] args){
int x=3,y=-3;
System.out.println(getCoordinate(x,y));
}
}

public class gradingSystem {
public static String getGrade(int total){
if(total >= 275) return "Grade-A";
if(total >= 245) return "Grade-B";
if(total >= 100) return "Grade-C";
return "Grade-D";
}

public static void main(String[] args){
    int phy=78,chem=90,maths=100;
    int total = phy+chem+maths;
    System.out.println("total "+total);
    System.out.print(getGrade);
}

}

public class triangle {
public static void getTypeOfTriangle(int x,int y,int z){
if (x == y && y == z )
System.out.println("Equilateral Triangle");
else if (x == y || y == z || z == x )
System.out.println("Isosceles Triangle");
else
System.out.println("Scalene Triangle");
}

public static void main(String[] args){
    getTypeOfTriangle(3,4,4);
}

}

import java.util.*;
public class NumToWords {
public static void main(String[] args){
Scanner scn = new Scanner(System.in);
int n = scn.nextInt();
switch(n){
case 1:
System.out.println("One");break;
case 2:
System.out.println("Two");break;
case 3:
System.out.println("Three");break;
case 4:
System.out.println("Four");break;
case 5:
System.out.println("Five");break;
default:
System.out.println("Entered n Value is More than 5");break;
}
}`

[SaichaitanyareddyG]

1.Write a program to find whether a given year is a leap year or not.
`import java.util.Scanner;

public class Leap {
public static void main(String[] args) {
System.out.printf("Enter the year: ");
Scanner sc = new Scanner(System.in);
int year = sc.nextInt();
if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {
System.out.format("%d is a leap year", year);

    } else {
        System.out.format("%d is not a leap year", year);
    }
}

}
2.Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.import java.util.Scanner;

public class Number {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.printf("Enter the number: ");
int m = s.nextInt();
if (m > 0)
System.out.println("1");
else if (m == 0)
System.out.println("0");
else
System.out.println("-1");

}

}
3.WAP to find the largest and smallest of three numbers.import java.util.Scanner;

public class Largest {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.printf("Enter the number1: ");
int a = s.nextInt();
System.out.printf("Enter the number2: ");
int b = s.nextInt();
System.out.printf("Enter the number3: ");
int c = s.nextInt();
if (a < b && a < c) {

        System.out.printf("\n%d is the smallest number", a);
    } else if (b < c) {

        System.out.printf("\n%d is the smallest number", b);
    } else {
        System.out.printf("\n%d is the smallest number", c);
    }
    if (a > b && a > c) {

        System.out.printf("\n%d is largest number", a);
    } else if (b > c) {

        System.out.printf("\n%d is largest number", b);
    } else {
        System.out.printf("\n%d is largest number", c);
    }

}

}
`
4.WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

`import java.util.Scanner;

public class Quadrants {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.printf("Enter the point x: ");
int x = sc.nextInt();
System.out.printf("Enter the point y: ");
int y = sc.nextInt();
if (x > 0 && y > 0)
System.out.format("(%d,%d) point lies in Quadrant1", x, y);
else if (x < 0 && y > 0)
System.out.format("(%d,%d) point lies in Quadrant2", x, y);
else if (x < 0 && y < 0)
System.out.format("(%d,%d) point lies in Quadrant3", x, y);
else
System.out.format("(%d,%d) point lies in Quadrant4", x, y);

}

}
`
5.WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.

`import java.util.Scanner;

public class Student {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.printf("Enter the Marks in Physics: ");
int p = sc.nextInt();
System.out.printf("Enter the Marks in Chemistry: ");
int c = sc.nextInt();
System.out.printf("Enter the Marks in Maths: ");
int m = sc.nextInt();
int total = p + c + m;
System.out.printf("Total Marks : %d", total);
int per = total / 3;
if (per >= 90)
System.out.printf("Grade A");
else if (per >= 80 && per < 90)
System.out.printf("Grade B");
else if (per >= 70 && per < 80)
System.out.printf("Grade C");
else
System.out.printf("Grade D");

}

}
`
6.WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.

`import java.util.Scanner;

public class Traingle {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.printf("Enter the length of a : ");
int a = sc.nextInt();
System.out.printf("Enter the length of b : ");
int b = sc.nextInt();
System.out.printf("Enter the length of c : ");
int c = sc.nextInt();
if (a == b && b == c)
System.out.printf("Equilateral Triangle");
else if (a == b || a == c || b == c)
System.out.printf("Isosceles Triangle");
else
System.out.printf("Scalene Triangle");

}

}
`
7.WAP to take a single-digit positive number as input and print it in words.

`import java.util.Scanner;

public class Word {
public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    System.out.printf("Enter the number :");
    int n = sc.nextInt();
    switch (n) {
        case 0:
            System.out.println("Zero");
            break;
        case 1:
            System.out.println("One");
            break;
        case 2:
            System.out.println("Two");
            break;
        case 3:
            System.out.println("Three");
            break;
        case 4:
            System.out.println("Four");
            break;
        case 5:
            System.out.println("Five");
            break;
        case 6:
            System.out.println("Six");
            break;
        case 7:
            System.out.println("Seven");
            break;
        case 8:
            System.out.println("Eight");
            break;
        case 9:
            System.out.println("Nine");
            break;
        default:
            System.out.println("Enter the Single Positive Digit numbers only.....");

    }

}

}
`

[aish955]

1. Leap Year

`public class LeapYear {
public static void main(String[] args) {
if (isLeapYear(1900))
System.out.println("LeapYear");
else
System.out.println("Not a leap year");
}

static boolean isLeapYear(int year) {
if (year % 4 == 0)
if (year % 100 == 0) {
if (year % 400 == 0) {
return true;
}
} else
return true;
return false;
}
}`

2. printing 0,1, -1 according to m

import java.io.*;
public class task2
{
public static void main() throws IOException
{
InputStreamReader read=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader (read);
System.out.println("Please enter a number:");
int m=Integer.parseInt(in.readLine());
if(m>0)
System.out.println("n: "+1);
else if(m<0)
System.out.println("n: "+-1);
else
System.out.println("n: "+0);
}
}``

3. Largest and smallest of three numbers

import java.io.*;
public class largest
{
public static void main() throws IOException
{
InputStreamReader read=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader (read);
System.out.println("Please enter 3 numbers:");
int a=Integer.parseInt(in.readLine());
int b=Integer.parseInt(in.readLine());
int c=Integer.parseInt(in.readLine());
int largest=0, smallest=0;
System.out.println("Largest number is: "+Math.max(Math.max(a,b),Math.max(b,c)));
System.out.println("smallest number is: "+Math.min(Math.min(a,b),Math.min(b,c)));
}
}``

4. determining in which quadrant the coordinate point lies

import java.io.*;
public class graph
{
public static void main() throws IOException
{
InputStreamReader read=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader (read);
System.out.println("Please enter the coordinates:");
int x=Integer.parseInt(in.readLine());
int y=Integer.parseInt(in.readLine());
if(x>0&&y>0)
System.out.println("1st quadrant");
else if(x<0&&y>0)
System.out.println("2nd quadrant");
else if(x<0&&y<0)
System.out.println("3rd quadrant");
else
System.out.println("4th quadrant");
}
}``

5. marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade

import java.io.*;
public class grade
{
public static void main() throws IOException
{
InputStreamReader read=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader (read);
System.out.println("Please enter phy chem math marks:");
int a=Integer.parseInt(in.readLine());
int b=Integer.parseInt(in.readLine());
int c=Integer.parseInt(in.readLine());
int tot=(a+b+c)/3;
if(tot>=90)
System.out.println("A");
else if(tot>=80)
System.out.println("B");
else if(tot>=70)
System.out.println("C");
else if(tot>=60)
System.out.println("D");
else
System.out.println("FAIL");
}
}``

6. take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene

import java.io.*;
public class tri
{
public static void main() throws IOException
{
InputStreamReader read=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader (read);
System.out.println("Please enter sides of triangle:");
int a=Integer.parseInt(in.readLine());
int b=Integer.parseInt(in.readLine());
int c=Integer.parseInt(in.readLine());
if(a==b&&b==c)
System.out.println("Equilateral");
else if(a==b||b==c||c==a)
System.out.println("Isosceles");
else
System.out.println("Scalene");
}
}``

7. Take a single-digit positive number as input and print it in words

import java.io.*;
public class words {
public static void main()throws IOException
{
InputStreamReader read=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader (read);
System.out.println("Please enter a single digit number");
int n=Integer.parseInt(in.readLine());
switch(n)
{
case 1:
System.out.println("ONE");
break;
case 2:
System.out.println("TWO");
break;
case 3:
System.out.println("THREE");
break;
case 4:
System.out.println("FOUR");
break;
case 5:
System.out.println("FIVE");
break;
case 6:
System.out.println("SIX");
break;
case 7:
System.out.println("SEVEN");
break;
case 8:
System.out.println("EIGHT");
break;
case 9:
System.out.println("NINE");
break;
default:
System.out.println("Enter a single digit number");
}
}
}

``

[Khyati-tripathi]

Write a program to find whether a given year is a leap year or not.

public class leapYear {
public static void main(String[] args) {
int year;
System.out.println("Enter an Year:");
Scanner sc = new Scanner(System.in);
year = sc.nextInt();

  if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0))
     System.out.println("It is a leap year");
  else
     System.out.println("It is not a leap year");

}

}

Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.
public class posNeg {
public static void main(String[] args) {
int m;
System.out.println("Enter a number:");
Scanner sc = new Scanner(System.in);
m = sc.nextInt();
int n = 0;
if (m > 0)
n = 1;
else if (m < 0)
n = -1;
System.out.println(n);
}

}

WAP to find the largest and smallest of three numbers.

public class largeSmall {
public static void main(String[] args) {
int n1, n2, n3;

    System.out.println("enter Three numbers");
    Scanner sc = new Scanner(System.in);
    n1 = sc.nextInt();
    n2 = sc.nextInt();
    n3 = sc.nextInt();
    int largest = 0, smallest = 0;
    largest = n1 > n2 ? (n1 > n3 ? n1 : n3) : (n2 > n3 ? n2 : n3);
    smallest = n3 < (n1 < n2 ? n1 : n2) ? n3 : ((n1 < n2) ? n1 : n2);
    System.out.println("largest number is: " + largest);
    System.out.println("smallest number is: " + smallest);
}

}

WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

public class Coordinate {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int a, b;
a = sc.nextInt();
b = sc.nextInt();
if (a > 0 && b > 0)
System.out.println("Ist Quadrant");
else if (a < 0 && b > 0)
System.out.println("2nd Quadrant");
else if (a < 0 && b < 0)
System.out.println("3rd Quadrant");
else if (a > 0 && b < 0)
System.out.println("4th Quadrant");
else
System.out.println("Origin")
}

}

WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.

public class gradeMarks {
public static void main(String[] args) {
double phy, chem, maths;

    System.out.println("enter Three numbers");
    Scanner sc = new Scanner(System.in);
    char grade = ' ';
    phy = sc.nextDouble();
    chem = sc.nextDouble();
    maths = sc.nextDouble();
    double marks = phy + chem + maths / 3;
    if (marks >= 85)
        grade = 'A';
    else if (marks >= 60 && marks < 85)
        grade = 'B';
    else
        grade = 'C';
    System.out.println("total marks= " + marks * 3);
    System.out.println("grades= " + grade);
}

}

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.

public class Triangle {
public static void main(String[] args) {
int x, y, z;

    System.out.println("enter Three sides");
    Scanner sc = new Scanner(System.in);
    x = sc.nextInt();
    y = sc.nextInt();
    z = sc.nextInt();
    if (x == y && y == z)
        System.out.println("Equilateral Triangle");
    else if (x == y || y == z || z == x)
        System.out.println("Isosceles Triangle");
    else
        System.out.println("Scalene Triangle");
}

}

WAP to take a single-digit positive number as input and print it in words.

public class NumWord {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter a single digit number : ");
int num = sc.nextInt();
switch (num) {
case 0:
System.out.println(" zero");
break;
case 1:
System.out.println(" one");
break;
case 2:
System.out.println(" two");
break;
case 3:
System.out.println(" three");
break;
case 4:
System.out.println("four");
break;
case 5:
System.out.println("five");
break;
case 6:
System.out.println("six");
break;
case 7:
System.out.println("seven");
break;
case 8:
System.out.println("eight");
break;
case 9:
System.out.println(" nine");
break;
default:
System.out.println("Invalid input");
break;
}
}
}

[DivikaAgrawal]

Write a program to find whether a given year is a leap year or not.
import java.util.Scanner;

public class Leapyear {

public static void main(String[] args) {
    try (Scanner sc = new Scanner(System.in)) {
        int year = sc.nextInt();

        if ((year % 4 == 0) && (year % 100 != 0) || (year % 400 == 0))
            System.out.println("Leap Year");
        else
            System.out.println("Not a Leap Year");
    }

}

}

Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.
import java.util.Scanner;
public class Display {
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
int m=sc.nextInt();

    if(m>0)
    System.out.println("n=1");
    else if(m==0)
    System.out.println("n=0");
    else if(m<0)
    System.out.println("n=-1");
}

}

WAP to find the largest of three numbers.
import java.util.Scanner;
public class Largest {

public static void main(String[] args)
{
    try (Scanner scanner = new Scanner(System.in)) {
        System.out.println("Enter the numbers");
                int a=scanner.nextInt();
                int b=scanner.nextInt();
                int c=scanner.nextInt();
        
                if(a>b&&a>c)
                {
                    System.out.println("a is largest");
                }
                else if(b>c&&b>a)
                {
                    System.out.println("b is largest");
                }
                else
                System.out.println("c is largest");

                
    }
}

}

WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

import java.util.Scanner;
public class Quadrant{
public static void main(String[] args)
{
Scanner scanner=new Scanner(System.in);

  System.out.println("Enter the X coordinate");
  int c1=scanner.nextInt();
  System.out.println("Enter the X coordinate");
  int c2=scanner.nextInt();
   
  if((c1==c2)&&(c2==0))
  System.out.println("Coordinate" +"(" + c1 + ", " + c2 +")" + " " + "is at origin");
  else if(c1>0&&c2>0)
  System.out.println("Coordinate" +"(" + c1 + ", " + c2 +")" + " " + "is in quadrant 1");
  else if(c1>0&&c2<0)
  System.out.println("Coordinate" +"(" + c1 + ", " + c2 +")" + " " + "is in quadrant 2");
  else if(c1<0&&c2<0)
  System.out.println("Coordinate" +"(" + c1 + ", " + c2 +")" + " " + "is in quadrant 3");
  else
  System.out.println("Coordinate" +"(" + c1 + ", " + c2 +")" + " " + "is in quadrant 4");

}
}

WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.
import java.util.Scanner;

public class SumPercentage {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the marks of Physics,chemistry,maths respectively");
int phym = sc.nextInt();
int chemm = sc.nextInt();
int mathsm = sc.nextInt();

    int sum = phym + chemm + mathsm;
    System.out.println(sum);
    float percentage = sum * 100 / 300;

    if (percentage >= 90)
        System.out.println("Grade A");
    else if (percentage >= 80)
        System.out.println("Grade B");
    else if (percentage >= 70)
        System.out.println("Grade C");
    else if (percentage >= 60)
        System.out.println("Grade D");
    else
        System.out.println("Fail");

}

}

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.
public class triangle {
public static void main(String[] args) {
int l1 = 8;
int l2 = 7;
int l3 = 7;

    if ((l1 == l2) && (l1 == l3) && (l3 == l1))
        System.out.println("Equalateral");
    else if (l1 == l2 || l2 == l3 || l3 == l1)
        System.out.println("Isoceles");
    else
        System.out.println("Scalene");
}

}

WAP to take a single-digit positive number as input and print it in words.
import java.util.Scanner;
public class InWords {

public static void main(String[] args)
{
    try (Scanner scanner = new Scanner(System.in)) {
        System.out.println("Enter the number");
        int num=scanner.nextInt();
        
        switch(num)
        {
            case 1:
            System.out.println("one");
            break;
            case 2:
            System.out.println("two");
            break;
            case 3:
            System.out.println("three");
            break;
            case 4:
            System.out.println("four");
            break;
            case 5:
            System.out.println("five");
            break;
            case 6:
            System.out.println("six");
            break;
            case 7:
            System.out.println("seven");
            break;
            case 8:
            System.out.println("eight");
            break;
            case 9:
            System.out.println("nine");
            break;
            default:
            break;
        }
    }
}

}

[Samyuktha26]

Write a program to find whether a given year is a leap year or not.

import java.util.*;

class Findleap {
static String checkforLeap(int n) {
if (n % 400 == 0 && n % 100 == 0)
return "Leap";
else if (n % 4 == 0 && n % 100 != 0)
return "leap";
else
return "Not Leap";
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println("enter a year");
    int n = sc.nextInt();
    System.out.println(checkforLeap(n));
}

}

Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.

import java.util.*;

class Task22 {
static int check(int n) {
if (n == 0)
return 0;
else if (n < 0)
return -1;
else
return 1;

}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println("enter a number");
    int n = sc.nextInt();
    System.out.println(check(n));
}

}

WAP to find the largest and smallest of three numbers.

import java.util.*;

class Task3 {
static void checkLarge(int n1, int n2, int n3) {
if (n1 > n2) {
if (n1 > n3) {
System.out.println(n1 + " is largest");
} else {
System.out.println(n3 + " is largest");
}
} else {
if (n2 > n3) {
System.out.println(n2 + " is largest");
} else {
System.out.println(n3 + " is largest");
}
}
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println("enter three numbers");
    int n1 = sc.nextInt();
    int n2 = sc.nextInt();
    int n3 = sc.nextInt();
    checkLarge(n1, n2, n3);
}

}

WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

import java.util.*;

class Task4 {
static void check(int x, int y) {
if (x > 0 && y > 0) {
System.out.println("(" + x + "," + y + ")" + "is in Quadrant 1");
} else if (x > 0 && y < 0) {
System.out.println("(" + x + "," + y + ")" + "is in Quadrant 3");
} else if (x < 0 && y > 0) {
System.out.println("(" + x + "," + y + ")" + "is in Quadrant 2");
} else {
System.out.println("(" + x + "," + y + ")" + "is in Quadrant 4");
}
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println("enter the co ordinate");
    int x = sc.nextInt();
    int y = sc.nextInt();
    check(x, y);
}

}

WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.

import java.util.*;

class Task5 {
static void findGrade(float avg, int sum) {
if (avg >= 90) {
System.out.println(" Total marks :" + sum + " Grade-A");
} else if (sum >= 80) {
System.out.println(" Total marks :" + sum + " Grade-B");
} else if (sum >= 70) {
System.out.println(" Total marks :" + sum + " Grade-C");
} else if (sum >= 60) {
System.out.println(" Total marks :" + sum + " Grade-D");
} else {
System.out.println(" Total marks :" + sum + " Fail");
}
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println("enter marks of three subjects");

    int sum = 0;
    sum += sc.nextInt();
    float avg = sum * 100 / 300;
    findGrade(avg, sum);

}

}

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.

import java.util.*;

class Task6 {
static void type(int n1, int n2, int n3) {
if (n1 == n2 && n2 == n3 && n3 == n1) {
System.out.println("Equilateral");
} else if (n1 == n2 || n2 == n3 || n3 == n1) {
System.out.println("Isoceles");
} else {
System.out.println("Scalane");
}
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    System.out.println("enter three sides");
    int n1 = sc.nextInt();
    int n2 = sc.nextInt();
    int n3 = sc.nextInt();
    type(n1, n2, n3);
}

}

WAP to take a single-digit positive number as input and print it in words.

import java.util.*;

class Task7 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("enter a digit");
int n = sc.nextInt();
switch (n) {
case 0:
System.out.println("Zero");
break;
case 1:
System.out.println("One");
break;
case 2:
System.out.println("Two");
break;
case 3:
System.out.println("Three");
break;
case 4:
System.out.println("Four");
break;
case 5:
System.out.println("Five");
break;
case 6:
System.out.println("Six");
break;
case 7:
System.out.println("Seven");
break;
case 8:
System.out.println("Eight");
break;
case 9:
System.out.println("Nine");
break;
default:
System.out.println("enter a valid input");

    }
}

}

[Prem-3]

`Write a program to find whether a given year is a leap year or not
import java.util.*;

public class LeapYear {
public static void leapYear(int n) {
if (((n % 4 == 0) && (n % 100 != 0)) || (n % 400 == 0)) {
System.out.println(n + " is a LeapYear");
} else
System.out.println(n + " is not a LeapYear");
}

public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    int k = sc.nextInt();
    leapYear(k);
}

}

To read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0

import java.util.*;

public class DisplayValue {
public static int value(int m) {
return m > 0 ? 1 : ((m < 0) ? -1 : 0);
}

public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    int k = sc.nextInt();
    System.out.println(value(3));
}

}

largest and smallest of three numbers
import java.util.*;

public class MinMax {
public static int MaxOfThree(int a, int b, int c) {
if (a > b && a > c)
return a;
else if (b > a && b > c)
return b;
else
return c;
}

public static int MinOfThree(int a, int b, int c) {
    if (a < b && a < c)
        return a;
    else if (b < a && b < c)
        return b;
    else
        return c;
}

public static void main(String args[]) {
    Scanner sc = new Scanner(System.in);
    int k = sc.nextInt();
    int l = sc.nextInt();
    int m = sc.nextInt();
    System.out.println("Largest num is: " + MaxOfThree(k, l, m));
    System.out.println("Smallest num is: " + MinOfThree(k, l, m));
}

}

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene

import java.util.*;

public class Tiangle {
public static void typeOfTrinagle(int a, int b, int c) {
if (a == b && b == c)
System.out.println("Equilateral triangle");
else if (a != b && b != c)
System.out.println("Scalene triangle");
else
System.out.println("Isosceles triangle");
}

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int k = sc.nextInt();
    int l = sc.nextInt();
    int m = sc.nextInt();
    typeOfTrinagle(k, l, m);
}

}

Take a single-digit positive number as input and print it in words

import java.util.*;

public class NumToWord {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
switch (n) {
case (1):
System.out.println("One");
break;
case (2):
System.out.println("two");
break;
case (3):
System.out.println("Three");
break;
default:
System.out.println("enter b/w 1 to 3 only");
}
}

}

`

[ujjwal18bit1167]

Write a program to find whether a given year is a leap year or not.

import java.util.*;
public class leapYear {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);

System.out.println("Enter Year:");
int year=s1.nextInt();

if(year%4==0){
    if(year%100==0){
        if(year%400==0){
            System.out.println("leap year!");
        }else{
            System.out.println("Not a leap year!");
        }
    }else{
        System.out.println("leap year!");
    }
}else{
    System.out.println("Not a leap year!");
}

}
}

Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.

import java.util.*;
public class nAndM{
public static void main(String[] args){
Scanner s1 = new Scanner(System.in);

System.out.println("Enter value of m: ");
int m=s1.nextInt();
int n=0;

if(m>0){
    n=1;
}else if(m==0){
    n=0;
}else{
    n=-1;
}


System.out.println("value of n is: "+n);

}
}

WAP to find the largest and smallest of three numbers.

import java.util.*;
public class smallestAndLargest {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);
int num1=s1.nextInt();
int num2=s1.nextInt();
int num3=s1.nextInt();

int small,largest;
if(num1 > num2 && num1>num3){
    largest = num1;
    if(num2>num3){
        small =num3;
    }else{
        small = num2;
    }
}else if(num2 > num1 && num2>num3){
    largest = num2;
    if(num1>num3){
        small =num1;
    }else{
        small = num3;
    }
}else{
    largest = num3;
    if(num1>num2){
        small =num2;
    }else{
        small = num1;
    }
}

System.out.println("Small Number: " + small);
System.out.println("Large Number: " + largest);

}
}

WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

import java.util.*;
public class detectQuadrant {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);
int a=s1.nextInt();
int b=s1.nextInt();

if(a>0 && b>0){
    System.out.println("Lies in first quadrant!");
}else if(a<0 && b>0){
    System.out.println("Lies in second quadrant!");
}else if(a<0 && b<0){
    System.out.println("Lies in third quadrant!");
}else{
    System.out.println("Lies in fourth quadrant!");
}

}
}

WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.

import java.util.*;
public class detectGrade {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);
System.out.println("Enter chemistry marks:");
int chem=s1.nextInt();
System.out.println("Enter physics marks:");
int phy=s1.nextInt();
System.out.println("Enter maths marks:");
int maths=s1.nextInt();

int total=(phy+chem+maths)/3;

if(total>90){
    System.out.println("Grade-A");
}else if(total>80 && total<=90){
    System.out.println("Grade-B");
}else if(total>70 && total<=80){
    System.out.println("Grade-C");
}else if(total>60 && total<=70){
    System.out.println("Grade-D");
}else{
    System.out.println("Fail");
}

}
}

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.

import java.util.*;
public class detectTriangle {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);
System.out.println("Enter first side:");
int f1=s1.nextInt();
System.out.println("Enter second side:");
int f2=s1.nextInt();
System.out.println("Enter third side:");
int f3=s1.nextInt();
if(f1==f2 && f2==f3 && f1==f3){
System.out.println("Equilateral triangle!");
}else if(f1!=f2 && f2!=f3 && f1!=f3){
System.out.println("Scalene triangle!");
}else{
System.out.println("Isosceles triangle!");
}
}
}

WAP to take a single-digit positive number as input and print it in words.

import java.util.*;

public class printWord {
public static void main(String[] args) {
Scanner s1 = new Scanner(System.in);

System.out.println("Enter number(0-10):");
int num = s1.nextInt();

switch (num) {
    case 0:
        System.out.println("Zero");
        break;
    case 1:
        System.out.println("One");
        break;
    case 2:
        System.out.println("Two");
        break;
    case 3:
        System.out.println("Three");
        break;
    case 4:
        System.out.println("four");
        break;
    case 5:
        System.out.println("five");
        break;
    case 6:
        System.out.println("six");
        break;
    case 7:
        System.out.println("seven");
        break;
    case 8:
        System.out.println("eight");
        break;
    case 9:
        System.out.println("nine");
        break;
    case 10:
        System.out.println("ten");
        break;
    default:
        System.out.println("enter number between 1-10");

}

}
}

[Harshita-Joshi]

Task 1

`import java.util.Scanner;

public class LeapYear {

public static void checkLeapOrNot(int y) {
    if ((y % 4 == 0 || y % 400 == 0) && (y % 100 != 0))
        System.out.println("A leap year!!");
    else
        System.out.println("Not a leap year");
}

public static void main(String[] args) {
    Scanner scn = new Scanner(System.in);
    System.out.println("Enter a year: ");
    int yr = scn.nextInt();
    checkLeapOrNot(yr);
}

}`

Task 2

`import java.util.Scanner;

public class MNDependency {

public static void main(String[] args) {

    Scanner scn = new Scanner(System.in);
    System.out.println("Enter a number: ");
    int m = scn.nextInt();
    int n;
    if (m > 0) {
        n = 1;
    } else if (m == 0) {
        n = 0;
    } else {
        n = -1;
    }

    System.out.println(n);
}

}
`

Task 3

`import java.util.Scanner;

public class LargestAndSmallest {

public static int findLargest(int a, int b, int c) {

    int res = (a > b) ? a : b;
    res = (res > c) ? res : c;
    return res;
}

public static int findSmallest(int a, int b, int c) {

    int res = (a < b) ? a : b;
    res = (res < c) ? res : c;
    return res;
}

public static void main(String[] args) {

    Scanner scn = new Scanner(System.in);
    System.out.println("Enter three numbers");
    int a = scn.nextInt();
    int b = scn.nextInt();
    int c = scn.nextInt();

    System.out.println("Largest is: " + findLargest(a, b, c));
    System.out.println("Smallest is: " + findSmallest(a, b, c));
}

}
`

Task 4

`import java.util.Scanner;

import javax.lang.model.util.ElementScanner14;

public class DeterQuadrant {

public static int findQuad(int x, int y) {

    if (x >= 0 && y >= 0)
        return 1;
    else if (x < 0 && y >= 0)
        return 2;
    else if (x < 0 && y <= 0)
        return 3;
    else
        return 4;

}

public static void main(String[] args) {

    Scanner scn = new Scanner(System.in);
    System.out.println("Enter x and y coords: ");
    int x = scn.nextInt();
    int y = scn.nextInt();

    System.out.println("(" + x + "," + y + ") lies in quadrant " + findQuad(x, y));

}

}
`

Task 5

`import java.util.Scanner;

import javax.lang.model.util.ElementScanner14;

public class StudentMarksGrade {

public static void main(String[] args) {
    Scanner scn = new Scanner(System.in);
    System.out.println("Enter marks in Physics, Chem and Maths: ");
    // int p = scn.nextInt();
    // int c = scn.nextInt();
    // int m = scn.nextInt();

    int totalMarks = 0;
    totalMarks += scn.nextInt();
    totalMarks += scn.nextInt();
    totalMarks += scn.nextInt();
    char grade;
    int avg = totalMarks / 3;
    if (avg >= 90)
        grade = 'A';
    else if (avg >= 80)
        grade = 'B';
    else if (avg >= 70)
        grade = 'C';
    else if (avg >= 60)
        grade = 'D';
    else
        grade = 'F';

    System.out.println("Marks in total = " + totalMarks);
    System.out.println("Average: " + avg);
    System.out.println("Grade: " + grade);
}

}
`

Task 6

`import java.util.Scanner;

import javax.lang.model.util.ElementScanner14;

public class TriangleType {

public static String findType(int a, int b, int c) {

    if (a == b && a == c)
        return "Equilateral";
    else if ((a == b) || (a == c) || (b == c))
        return "Isosceles";
    else
        return "Scalene";

}

public static void main(String[] args) {
    Scanner scn = new Scanner(System.in);
    System.out.println("Enter three sides of triangle: ");
    int a = scn.nextInt();
    int b = scn.nextInt();
    int c = scn.nextInt();

    System.out.println("The triangle is: " + findType(a, b, c));

}

}
`

Task 7

`import java.util.Scanner;

public class PrintNumInWords {

public static void main(String[] args) {
    Scanner scn = new Scanner(System.in);
    System.out.println("Enter a positive single-digit number: ");
    int n = scn.nextInt();

    switch (n) {
        case 1:
            System.out.println("One");
            break;
        case 2:
            System.out.println("Two");
            break;
        case 3:
            System.out.println("Three");
            break;
        case 4:
            System.out.println("Four");
            break;
        case 5:
            System.out.println("Five");
            break;
        case 6:
            System.out.println("Six");
            break;
        case 7:
            System.out.println("Seven");
            break;
        case 8:
            System.out.println("Eight");
            break;
        case 9:
            System.out.println("Nine");
            break;
        default:
            System.out.println("Invalid choice!!");
    }

}

}
`

[KaminiJha]

Write a program to find whether a given year is a leap year or not.

public class LeapYear {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
int year = s.nextInt();
if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0)
System.out.println("Leap Year: " + year);
else
System.out.println("Not a Leap Year");
    }
}

Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.

public class ValueFromUser {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
System.out.print("Enter value of n: ");
int m = s.nextInt();
int n;
if (m > 0)
n = 1;
else if (m == 0)
n = 0;
else
n = -1;
System.out.println("Value of n: " + n);
    }
}

WAP to find the largest and smallest of three numbers.

public class MinOfThree {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
    System.out.print("Enter the 3 no's: ");
    int n1 = s.nextInt();
    int n2 = s.nextInt();
    int n3 = s.nextInt();
    int min = n1;
    if (n2 < min) {
        if (n2 < n3)
            min = n2;
        else
            min = n3;
    } else if (n3 < min) {
        min = n3;
    }
    System.err.println( min);
    }
}

WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

public class Quadrant {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
System.out.print("Enter the value of x and y coordinate:");
int x = s.nextInt();
int y = s.nextInt();
int quad = 0;
if (x > 0) {
if (y > 0)
quad = 1;
else
quad = 4;
} else {
if (y > 0)
quad = 2;
else
quad = 3;
}
System.out.println("(" + x + "," + y + ")" + " present in " + quad + " quadrant");

    }
}

WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.

public class Marks {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
System.out.println("Enter Marks in physics chem and maths");
int p = sc.nextInt();
int c = sc.nextInt();
int m = sc.nextInt();
int total = p + c + m;
if (total > 90) {
System.out.println("grade A");
}
else if (total > 80) {
System.out.println("grade B");
} 
else if (total > 70) {
System.out.println("grade C");
} 
else if (total >= 60){
System.out.println("grade D");
} 
else {
System.out.println("fail");
}

    }
}

WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.

public class Triangle {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
System.out.println("Enter first side:");
int s1=sc.nextInt();
System.out.println("Enter second side:");
int s2=sc.nextInt();
System.out.println("Enter third side:");
int s3=sc.nextInt();
    if(s1==s2 && s2==s3 && s1==s3){
        System.out.println("Equilateral triangle!");
    }else if(s1!=s2 && s2!=s3 && s1!=s3){
        System.out.println("Scalene triangle!");
    }else{
        System.out.println("Isosceles triangle!");
    }
    }
}

WAP to take a single-digit positive number as input and print it in words.

public class DigitInWord {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Select a number ranging from 0 -9 : ");
        int num = sc.nextInt();
        switch (num) {
            case 0:
                System.out.println(" zero");
                break;
            case 1:
                System.out.println("one");
                break;
            case 2:
                System.out.println("two");
                break;
            case 3:
                System.out.println("three");
                break;
            case 4:
                System.out.println("four");
                break;
            case 5:
                System.out.println("five");
                break;
            case 6:
                System.out.println("six");
                break;
            case 7:
                System.out.println("seven");
                break;
            case 8:
                System.out.println("eight");
                break;
            case 9:
                System.out.println("nine");
                break;
            default:
                System.out.println("Invalid number");
                break;
        }
    }

}

[Ashritha-sd]

1. LEAP YEAR

import java.util.*;
class LeapYear {
    public static void main(String args[]) {
        Scanner sc=new Scanner(System.in);
        int year=sc.nextInt();
        boolean is_leap=false;
        if(year%4==0) {
            if(year%100==0) {
                if(year%400==0) {
                    is_leap=true;
                }
                else
                    is_leap=false;
            }
        }
        else
            is_leap=false;
        if(is_leap==true) 
            System.out.println(year+" is a leap year");
        else
            System.out.println(year+" is not a leap year");
    }
}

2.MN

import java.util.*;
class Main {
    public static void main(String args[]) {
        Scanner sc=new Scanner(System.in);
        int m=sc.nextInt();
        int n;
        if (m > 0)
            n = 1;
        else if (m == 0)
            n = 0;
        else
            n = -1;
        System.out.println("value of n is : " + n);
    }
}

3.Smallest Largest

import java.util.*;
class Main {
    public static void main(String args[]) {
        Scanner sc=new Scanner(System.in);
        int a=sc.nextInt();
        int b=sc.nextInt();
        int c=sc.nextInt();
        System.out.println(a>b? (a>c?a:c) :(b>c?b:c) +" is largest");
        System.out.println(a<b? (a<c?a:c) :(b<c?b:c) +" is smallest");
    }
}

4. QUADRANT

import java.util.*;
class Quadrant {
    public static void main(String args[]) {
        Scanner sc=new Scanner(System.in);
        int x=sc.nextInt();
        int y=sc.nextInt();
        if(x>0 && y>0)
            System.out.println("Quadrant 1");
        else if(x<0 && y>0)
            System.out.println("Quadrant 2");
        else if(x<0 && y<0)
            System.out.println("Quadrant 3");
        else
            System.out.println("Quadrant 4");
    }
}

5.Grades

import java.util.*;
class Main {
    public static void main(String args[]) {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter chemistry marks:");
        int c=sc.nextInt();
        System.out.println("Enter physics marks:");
        int p=sc.nextInt();
        System.out.println("Enter maths marks:");
        int m=sc.nextInt();
        int total=(c+p+m)/3;

        if(total>90){
            System.out.println("Grade-A");
        }
        else if(total>80 && total<=90){
            System.out.println("Grade-B");
        }
        else if(total>70 && total<=80){
            System.out.println("Grade-C");
        }
        else if(total>60 && total<=70){
            System.out.println("Grade-D");
        }
        else{
            System.out.println("Fail");
        }
    }
}

6. Triangle type

import java.util.*;
class TriangleType {
    public static void main(String args[]) {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter three sides of triangle");
        int s1=sc.nextInt();
        int s2=sc.nextInt();
        int s3=sc.nextInt();
        if (a + b > c && b + c > a && a + c > b) {
        if(s1==s2){
            if(s2==s3)
                System.out.println("Equilateral triangle");
            else
                System.out.println("Isosceles triangle");
        }
        else {
            if(s2==s3)
                System.out.println("Isosceles traingle");
            else
                System.out.println("Scalene triangle");
        }
        }
        else
            System.out.println("Triangle not possible");
    }
}

7. Print Number in word

import java.util.*;
class PrintWord {
    public static void main(String args[]) {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter number(0-10):");
        int num = sc.nextInt();
        switch (num) {
        case 0:
            System.out.println("Zero");
            break;
        case 1:
            System.out.println("One");
            break;
        case 2:
            System.out.println("Two");
            break;
        case 3:
            System.out.println("Three");
            break;
        case 4:
            System.out.println("Four");
            break;
        case 5:
            System.out.println("Five");
            break;
        case 6:
            System.out.println("Six");
            break;
        case 7:
            System.out.println("Seven");
            break;
        case 8:
            System.out.println("Eight");
            break;
        case 9:
            System.out.println("Nine");
            break;
        default:
            System.out.println("enter number between 1-10");
        }
    }
}

[PavanArvapally]

1. Write a program to find whether a given year is a leap year or not.

import java.util.*;
public class Task5 {
   public static void main(String[] args) {
       Scanner sc= new Scanner(System.in);
       int n = sc.nextInt();
       if(n % 4 == 0)
       System.out.println("Leap Year");
       else
       System.out.println("Not a leap year");
   } 
}

2. Write a program to read the value of an integer m and display the value of n as 1 when m is larger than 0, 0 when m is 0, and -1 when m is less than 0.

import java.util.*;
public class Task5 {
   public static void main(String[] args) {
       Scanner sc= new Scanner(System.in);

        int m = sc.nextInt(), n;

        if(m > 0)
        n = 1;
        else if(m == 0)
        n = 0;
        else
        n = -1;

        System.out.println("n value = " + n);
   } 
}

3. WAP to find the largest and smallest of three numbers.

import java.util.*;
public class Task5 {
   public static void main(String[] args) {
       Scanner sc= new Scanner(System.in);
       int a = sc.nextInt();
       int b = sc.nextInt();
       int c = sc.nextInt();

       if(a>b && a>c)
       System.out.println(a + " is greater");
       else if(b>a && b>c)
       System.out.println(b + " is greater");
       else
       System.out.println(c + " is greater");

       if(a<b && a<c)
       System.out.println(a + " is smaller");
       else if(b<a && b<c)
       System.out.println(b + " is smaller");
       else
       System.out.println(c + " is smaller");
   } 
}

4. WAP to accept a coordinate point in an XY coordinate system and determine in which quadrant the coordinate point lies.

import java.util.*;

public class Task5 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        int y = sc.nextInt();

        if(x > 0 && y > 0)
        System.out.println("1st Quadrant");
        else if(x > 0 && y < 0)
        System.out.println("2st Quadrant");
        else if(x < 0 && y < 0)
        System.out.println("3st Quadrant");
        else
        System.out.println("4th Quadrant");
    }
}

5. WAP to accept the marks of a student in Phy, Chem, and Maths. Calculate the total marks and the grade.

import java.util.*;

public class Task5 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        System.out.println("Enter the physics,chemistry,math marks : ");
        int phy = sc.nextInt();
        int chem = sc.nextInt();
        int math = sc.nextInt();
        int tot = phy + math + chem;
        if (tot >= 270)
            System.out.println("The grade is A");
        else if (tot >= 220)
            System.out.println("The grade is B");
        else if (tot >= 170)
            System.out.println("The grade is C");
        else if (tot >= 110)
            System.out.println("The grade is D");
        else
            System.out.println("Fail");
    }
}

6. WAP to take 3 sides of a triangle as input and find out if it is Equilateral, Isosceles, or Scalene.

import java.util.*;

public class Task5 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        System.out.println("Enter first side:");
        int s1 = sc.nextInt();
        System.out.println("Enter second side:");
        int s2 = sc.nextInt();
        System.out.println("Enter third side:");
        int s3 = sc.nextInt();
        if (s1 == s2 && s2 == s3 && s1 == s3) {
            System.out.println("Equilateral triangle!");
        } else if (s1 != s2 && s2 != s3 && s1 != s3) {
            System.out.println("Scalene triangle!");
        } else {
            System.out.println("Isosceles triangle!");
        }
    }
}

7. WAP to take a single-digit positive number as input and print it in words.

import java.util.*;

public class Task5 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

    System.out.println("Enter number between 1 to 10 :");
    int num = sc.nextInt();

    switch (num) {
        case 0:
            System.out.println("Zero");
            break;
        case 1:
            System.out.println("One");
            break;
        case 2:
            System.out.println("Two");
            break;
        case 3:
            System.out.println("Three");
            break;
        case 4:
            System.out.println("four");
            break;
        case 5:
            System.out.println("five");
            break;
        case 6:
            System.out.println("six");
            break;
        case 7:
            System.out.println("seven");
            break;
        case 8:
            System.out.println("eight");
            break;
        case 9:
            System.out.println("nine");
            break;
        case 10:
            System.out.println("ten");
            break;
        default:
            System.out.println("enter valid number between 1-10");

    }
    }
}

[Abhishekk6]

Code

1

import java.util.Scanner;

public class LeapYear {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		System.out.println("Enter the Year");
		int year = Integer.parseInt(sc.next());
		if(year %4 ==0 && year % 100!=0 || year % 400 == 0) {
			System.out.println("year is leap year");
		}else {
			System.out.println("year is not a leap year");
		}
	}

}

[ShravanKV2310]

Code

1

public class A {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int year = scan.nextInt();
		if(year%4==0 || year%400==0 && year%100!=0) {
			System.out.println("Leap Year");
		}else {
			System.out.println("not leap");
		}
	}
}

[Abhishekk6]

Code

2

import java.util.Scanner;

public class mn {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		System.out.println("Enter the value of m:");{
			int m = Integer.parseInt(sc.next());
			int n;
			if(m>0) {
				n=1;
			}else if(m==0) {
				n=0;
			}else {
				n=-1;
			}
			System.out.println("the value of n is:"+ n);
		}
	}

}

[ShravanKV2310]

Code

2

import java.util.Scanner;
public class Mn {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int m = scan.nextInt();
		int n;
		if (m>0) {
			n=1;
		}else if (m==0) {
			n=0;
		}else {
			n=-1;
		}
		System.out.println(n);
	}
}

[ShravanKV2310]

Code

3

import java.util.Scanner;
public class Mn {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		int x = (a>b) ? ((a > c) ? a : c): ((b > c) ? b : c);
		int y = (a<b) ? ((a < c) ? a : c): ((b < c) ? b : c);
		System.out.printf("the largest number in %d ,%d ,%d is %d",a,b,c,x);
		System.out.println();
		System.out.printf("the smallest number in %d ,%d ,%d is %d",a,b,c,y);
	}
	
}