Problem statement 3

src/com/Hotwax/www/Main.java

@@ -0,0 +1,184 @@
+package com.company;
+import java.util.*;
+
+
+class Triangle{
+    int height;
+    int base;
+
+    void getDimensions(int h , int b){
+        height = h;
+        base = b;
+    }
+
+    void calculateArea(){
+        System.out.println((height*base)/2);
+    }
+
+    void calculatePerimeter(int a , int b , int c){
+        System.out.println(a+b+c);
+    }
+}
+class Rectangle{
+    void calculateArea(int l , int b){
+        System.out.println(l*b);
+    }
+    void calculatePerimeter(int l , int b){
+        System.out.println(2*l + 2*b);
+    }
+}
+class Square{
+    void calculateArea(int l ){
+        System.out.println(l*l);
+    }
+    void calculatePerimeter(int l){
+        System.out.println(4*l);
+    }
+}
+class Cylinder{
+    void calculateArea(int r, int h ){
+        System.out.println(2*3.14*r*h+ 2*3.14*r*r);
+    }
+    void calculatePerimeter(int r ){
+        System.out.println((2*3.14*r*r));
+    }
+    void calculateVolume(int r , int h ){
+        System.out.println(3.14 * r*r*h);
+    }
+}
+class Sphere{
+    void calculateArea(int r ){
+        System.out.println(4*3.14*r*r);
+    }
+    void calculatePerimeter(int r ){
+        System.out.println((2*3.14*r));
+    }
+    void calculateVolume(int r ){
+        System.out.println(3.14 * r*r*r * 1.34);
+    }
+}
+class Circle{
+    void calculateArea(int r){
+        System.out.println(3.14*r*r);
+    }
+    void calculatePerimeter(int r){
+        System.out.println((2*3.14*r));
+    }
+}
+public class Main {
+
+    public static void main(String[] args) {
+        // write your code here
+        while (true)
+        {
+            System.out.println("Enter shape : ");
+            Scanner sc = new Scanner(System.in);
+            String shape = sc.next();
+            if (shape.equalsIgnoreCase( "triangle")){
+                Triangle t = new Triangle();
+                System.out.println("Enter Operation to be performed : ");
+                String operation = sc.next();
+                if (operation.equalsIgnoreCase("area")){
+                    System.out.print("Enter height of Triangle : ");
+                    int height = sc.nextInt();
+                    System.out.print("Enter base of Triangle : ");
+                    int base = sc.nextInt();
+                    t.getDimensions(height, base);
+                    t.calculateArea();
+                }
+                if (operation.equalsIgnoreCase("perimeter")){
+                    System.out.println("Enter length of first side");
+                    int a = sc.nextInt();
+                    System.out.println("Enter length of second side");
+                    int b = sc.nextInt();
+                    System.out.println("Enter length of third side");
+                    int c = sc.nextInt();
+                    t.calculatePerimeter(a,b,c);
+                }
+
+            }
+            else if (shape.equalsIgnoreCase("rectangle")){
+                Rectangle r = new Rectangle();
+                System.out.println("Enter Operation to be performed : ");
+                String operation = sc.next();
+                System.out.println("Enter length : ");
+                int l = sc.nextInt();
+                System.out.println("Enter breadth : ");
+                int b = sc.nextInt();
+                if (operation.equalsIgnoreCase("area")){
+                    r.calculateArea(l,b);
+                }
+                else if (operation.equalsIgnoreCase("perimeter")){
+                    r.calculatePerimeter(l,b);
+                }
+            }
+            else if (shape.equalsIgnoreCase("square")){
+                Square r = new Square();
+                System.out.println("Enter Operation to be performed : ");
+                String operation = sc.next();
+                System.out.println("Enter side : ");
+                int l = sc.nextInt();
+                if (operation.equalsIgnoreCase("area")){
+                    r.calculateArea(l);
+                }
+                else if (operation.equalsIgnoreCase("perimeter")){
+                    r.calculatePerimeter(l);
+                }
+            }
+            else if (shape.equalsIgnoreCase("cylinder")){
+                Cylinder c = new Cylinder();
+                System.out.println("Enter Operation to be performed : ");
+                String operation = sc.next();
+                System.out.println("Enter radius : ");
+                int r = sc.nextInt();
+                System.out.println("Enter height : ");
+                int h = sc.nextInt();
+                if (operation.equalsIgnoreCase("area")){
+                    c.calculateArea(r,h);
+                }
+                else if (operation.equalsIgnoreCase("perimeter")){
+                    c.calculatePerimeter(r);
+                }
+                else if (operation.equalsIgnoreCase("Volume")){
+                    c.calculateVolume(r,h);
+                }
+            }
+            else if (shape.equalsIgnoreCase("circle")){
+                Circle c = new Circle();
+                System.out.println("Enter Operation to be performed : ");
+                String operation = sc.next();
+                System.out.println("Enter radius : ");
+                int r = sc.nextInt();
+                if (operation.equalsIgnoreCase("area")){
+                    c.calculateArea(r);
+                }
+                else if (operation.equalsIgnoreCase("perimeter")) {
+                    c.calculatePerimeter(r);
+                }
+            }
+            else if (shape.equalsIgnoreCase("Sphere")){
+                Sphere s = new Sphere();
+                System.out.println("Enter Operation to be performed : ");
+                String operation = sc.next();
+                System.out.println("Enter radius : ");
+                int r = sc.nextInt();
+                if (operation.equalsIgnoreCase("area")){
+                    s.calculateArea(r);
+                }
+                else if (operation.equalsIgnoreCase("perimeter")) {
+                    s.calculatePerimeter(r);
+                }
+                else if (operation.equalsIgnoreCase("Volume")) {
+                    s.calculateVolume(r);
+                }
+            }
+            else if (shape.equalsIgnoreCase("done")){
+                break;
+            }
+            else{
+                System.out.println("shape not found");
+            }
+
+        }
+    }
+}

src/com/Hotwax/www/Problem_statement_1.java

@@ -0,0 +1,49 @@
+package com.company;
+import java.io.*;
+import java.util.Scanner;
+import java.net.*;
+
+
+public class Problem_statement_1 {
+    public static void main(String[] args) {
+        String[] a = new String[3];
+        try {
+            File obj1 = new File("url.txt");
+            Scanner r = new Scanner(obj1);
+            File f = new  File("words.txt");
+            Scanner sc = new Scanner(f);
+            int j=0;
+            while (sc.hasNextLine()){
+//                System.out.println(sc.nextLine());
+                a[j] = sc.nextLine();
+                j+=1;
+            }
+            while (r.hasNextLine()) {
+                String data = r.nextLine();
+                URL x = new URL(data);
+                BufferedReader in = new BufferedReader(new InputStreamReader(x.openStream()));
+                String inputLine;
+
+                int v=0,w=0,y=0;
+                while ((inputLine = in.readLine()) != null) {
+                    String result = inputLine.replaceAll("<[^>]*>", "");
+                    int count = (result.split(a[0]).length) - 1;
+                    int count1 = (result.split(a[1]).length) - 1;
+                    int count2 = (result.split(a[2]).length) - 1;
+                    v += count;
+                    w += count1;
+                    y += count2;
+                }
+                System.out.println("Word "+a[0]+" has occurred "+v+" times");
+                System.out.println("Word "+a[1]+" has occurred "+w+" times");
+                System.out.println("Word "+a[2]+" has occurred "+y+" times");
+
+                in.close();
+            }
+            r.close();
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/com/Hotwax/www/Problem_statement_4_OverdrawnDemo.java

@@ -0,0 +1,39 @@
+package com.company;
+
+class Accountt extends Thread {
+    String name;
+    int balance = 1000;
+    int getBalance(){
+        return balance;
+    }
+    public void run(){
+        int i =0;
+        while(i<5){
+            balance = balance - 100;
+            System.out.println("b"+balance);
+            i+=1;
+        }
+
+    }
+}
+
+class AccountOverdrawDemo1 {
+    public void main() {
+        Accountt boy1 = new Accountt();
+        boy1.name = "vin";
+        boy1.run();
+        boy1.start();
+
+        for(int i =0 ; i<5;i++){
+            boy1.balance = boy1.balance-100;
+            System.out.println("a"+boy1.balance);
+        }
+    }
+}
+public class Problem_statement_4_OverdrawnDemo {
+    public static void main(String[] args) {
+        AccountOverdrawDemo1 acc = new AccountOverdrawDemo1();
+//        AccountOverdrawDemo1 acc = new AccountOverdrawDemo1();
+        acc.main();
+    }
+}

src/com/Hotwax/www/Problem_statement_4_OverdrawnSafeDemo.java

@@ -0,0 +1,46 @@
+package com.company;
+
+class Account{
+    int balance = 1000;
+    void withdraw(String s , int b){
+        if (balance >= b){
+            balance = balance - b;
+            System.out.println(s +" withdrew "+b+" amount of money");
+            System.out.println("New balance " + balance);
+        }
+        else{
+            System.out.println("Not enough money");
+        }
+    }
+}
+
+class AccountOverdrawSafeDemo extends Thread{
+    Account ac;
+    String name;
+    int balance;
+    AccountOverdrawSafeDemo(Account ob, String n, int b)
+    {
+        ac = ob;
+        name = n;
+        balance = b;
+    }
+
+    public void run(){
+        ac.withdraw(name, balance);
+    }
+}
+
+public class Problem_statement_4_OverdrawnSafeDemo {
+    public static void main(String[] args) {
+        Account acc = new Account();
+        for (int i =0 ;i<5;i++){
+            AccountOverdrawSafeDemo a = new AccountOverdrawSafeDemo(acc, "a", 100);
+            a.start();
+        }
+        for (int i =0 ;i<5;i++){
+            AccountOverdrawSafeDemo b = new AccountOverdrawSafeDemo(acc, "b", 100);
+            b.start();
+        }
+    }
+
+}