diff --git a/Answers/40230212055/CaesarDecoder.java b/Answers/40230212055/CaesarDecoder.java
new file mode 100644
index 0000000..a8548af
--- /dev/null
+++ b/Answers/40230212055/CaesarDecoder.java
@@ -0,0 +1,56 @@
+package tamrin2_AP;
+
+import java.util.Scanner;
+
+public class CaesarDecoder {
+
+    public static void main(String[] args) {
+
+        System.out.print("enter sentence : ");
+        Scanner input = new Scanner(System.in);
+        String stringinput = input.nextLine();
+
+        System.out.print("shift : ");
+        Scanner inputshift = new Scanner(System.in);
+        int shift = input.nextInt();
+
+
+        char[] sentence = stringinput.toCharArray();
+        int asci;
+
+        for (int i = 0; i < sentence.length; i++) {
+
+            asci = sentence[i];
+
+
+            if ((asci - shift) >= 65 && asci <= 90)
+            {
+                sentence[i] = (char) (asci - shift);
+            }
+
+            else if ((asci - shift) < 65 && asci <= 90)
+            {
+                if (asci==32)
+                    continue;
+
+                sentence[i] = (char) (91 - (65 - (asci - shift)));
+            }
+
+            else if ((asci - shift) >= 97 && (asci - shift) <= 122)
+            {
+                sentence[i] = (char) (asci - shift);
+            }
+
+            else if ((asci - shift) < 97 && asci >= 97)
+            {
+                sentence[i] = (char) ((123-(97 - (asci - shift))));
+            }
+
+        }
+
+        for (int i = 0; i < sentence.length; i++)
+        {
+            System.out.print(sentence[i]);
+        }
+    }
+}
diff --git a/Answers/40230212055/CaesarEncoder.java b/Answers/40230212055/CaesarEncoder.java
new file mode 100644
index 0000000..d378b81
--- /dev/null
+++ b/Answers/40230212055/CaesarEncoder.java
@@ -0,0 +1,71 @@
+package tamrin2_AP;
+
+import java.util.Scanner;
+
+public class CaesarEncoder {
+
+    public static void main(String[] args) {
+
+        System.out.print("enter sentence : ");
+        Scanner input = new Scanner(System.in);
+        String stringinput = input.nextLine();
+
+        System.out.print("shift : ");
+        Scanner inputshift = new Scanner(System.in);
+        int shift = input.nextInt();
+
+
+        char[] sentence = stringinput.toCharArray();
+        int asci;
+
+        for (int i=0 ; i<sentence.length ; i++)
+        {
+
+            asci = sentence[i];
+
+
+            if ((asci+shift)>=65 && (asci+shift)<=90)
+            {
+                sentence[i] = (char)(asci+shift);
+            }
+
+            else if ((asci+shift)>90 && (asci+shift)<=122)
+            {
+                if (asci<=90)
+                {
+                    sentence[i]=(char) (64+((asci+shift)-90));
+                }
+                else if (asci>90)
+                {
+                    sentence[i]=(char)(asci+shift);
+                }
+
+            }
+
+            else if ((asci+shift)>=97 && (asci+shift)<=122)
+            {
+                sentence[i]=(char) asci;
+            }
+
+            else if ((asci+shift)>122 )
+            {
+                sentence[i]=(char) (96+((asci+shift)-122));
+            }
+
+
+        }
+
+        for (int i=0 ; i< sentence.length ; i++)
+        {
+            System.out.print(sentence[i]);
+        }
+
+
+
+
+
+
+
+
+    }
+}
diff --git a/Answers/40230212055/Main.java b/Answers/40230212055/Main.java
new file mode 100644
index 0000000..9487d5a
--- /dev/null
+++ b/Answers/40230212055/Main.java
@@ -0,0 +1,395 @@
+package tamrin2_AP;
+
+import java.util.Arrays;
+import java.util.Scanner;
+
+public class Main {
+
+
+    public static String fullname() {
+
+
+        Scanner input1 = new Scanner(System.in);
+        Scanner input2 = new Scanner(System.in);
+        System.out.print("enter first name : ");
+        String firstname = input1.nextLine();
+        System.out.print("enter last name : ");
+        String lastname = input2.nextLine();
+
+        String[] name1 = firstname.split("");
+        String[] name2 = lastname.split("");
+
+        name1[0] = name1[0].toUpperCase();
+        name2[0] = name2[0].toUpperCase();
+
+        for (int i = 1; i < name1.length; i++) {
+            name1[i] = name1[i].toLowerCase();
+            name1[0] += name1[i];
+        }
+
+        for (int i = 1; i < name2.length; i++) {
+            name2[i] = name2[i].toLowerCase();
+            name2[0] += name2[i];
+        }
+
+        name1[0] += " ";
+        name1[0] += name2[0];
+        System.out.println("Full name : " + name1[0]);
+
+
+        return name1[0];
+    }
+
+
+    public static String phonenumber() {
+
+
+        System.out.print("enter phune number(must be 11 digit) : ");
+
+        Scanner input = new Scanner(System.in);
+        String number1 = input.nextLine();
+        String[] number = number1.split("");
+
+
+        if (number.length == 11)
+        {
+            for (int i = 1; i <= 10; i++) {
+                number[0] += number[i];
+            }
+
+            System.out.print("phone number : " + number[0]);
+
+            return number[0];
+        }
+
+
+
+        else if (number[0] != "0" && number.length == 10)
+        {
+            String str = "0";
+
+            for (int i = 0; i < number.length; i++) {
+                str += number[i];
+            }
+
+            System.out.print("phone number : " + str);
+
+            return str;
+        }
+
+
+        else if (number[0] != "0" && number.length == 10)
+        {
+            String str = "0";
+
+            for (int i = 0; i < number.length; i++) {
+                str += number[i];
+            }
+
+            System.out.print("phone number : " + str);
+
+            return str;
+        }
+
+
+
+        else
+        {
+            System.out.println("Wrong entry. Try again (enter (0)) : ");
+            return phonenumber();
+        }
+
+
+    }
+
+
+    public static String[] interests() {
+
+
+        System.out.print("number of interest : ");
+        Scanner input = new Scanner(System.in);
+        int limit = input.nextInt();
+
+        String[] interest = new String[limit];
+
+        for (int i = 0; i < limit; i++) {
+
+            System.out.print("interest " + (i + 1) + " : ");
+
+            Scanner input2 = new Scanner(System.in);
+            interest[i] = input2.nextLine();
+
+
+        }
+
+        System.out.println("your interests list : ");
+
+        for (int i = 0; i < limit; i++) {
+            System.out.println((i + 1) + " : " + interest[i]);
+        }
+
+        return interest;
+    }
+
+
+    public static String userid() {
+
+        System.out.print("enter ID : ");
+
+        Scanner input = new Scanner(System.in);
+        String id = input.nextLine();
+
+        System.out.println("you ID : " + id);
+
+        return id;
+    }
+
+
+    public static String information1(String fullname, String phonenumber, String ID, String[] interests) {
+
+
+        String str = "Hello! My name is ";
+
+        str += fullname;
+        str += ".";
+        str += "My ID is ";
+        str += ID;
+        str += ".";
+        str += "Here are some of my interest:";
+        str += "#";
+
+        for (int i = 0; i < 3; i++) {
+            System.out.println("\n");
+        }
+
+        System.out.println("Hello! My name is " + fullname + "." + "My ID is " + ID + "." + "Here are some of myinterest:" + "\n");
+
+        for (int i = 0; i < interests.length; i++)
+        {
+            System.out.println((i + 1) + " : " + interests[i]);
+
+                str += interests[i];
+                str += "#";
+
+        }
+
+        // baraye mark kardan
+
+        System.out.println("\n" + "You can reach me via my phone number " + phonenumber + " ." + "\n");
+
+        str += "You can reach me via my phone number " ;
+        str += phonenumber+".";
+        str += "#";
+
+
+
+
+        return str;
+
+        //Hello! My name is Aryan Nourbakhsh. My ID is 40030111111. Here are some of my interests:
+
+    }
+
+
+    public static String EnCodeInformation(String stringinput)
+    {
+
+        System.out.print("shift : ");
+        Scanner inputshift = new Scanner(System.in);
+        int shift = inputshift.nextInt();
+
+
+        char[] sentence = stringinput.toCharArray();
+        int asci;
+
+        for (int i=0 ; i<sentence.length ; i++)
+        {
+
+            asci = sentence[i];
+
+
+            if ((asci+shift)>=65 && (asci+shift)<=90)
+            {
+                if (asci < 65)
+                    continue;
+                sentence[i] = (char)(asci+shift);
+            }
+
+            else if ((asci+shift)>90 && (asci+shift)<=122)
+            {
+                if (asci<=90)
+                {
+                    sentence[i]=(char) (64+((asci+shift)-90));
+                }
+                else if (asci>90)
+                {
+                    sentence[i]=(char)(asci+shift);
+                }
+
+            }
+
+            else if ((asci+shift)>=97 && (asci+shift)<=122)
+            {
+                sentence[i]=(char) asci;
+            }
+
+            else if ((asci+shift)>122 )
+            {
+                sentence[i]=(char) (96+((asci+shift)-122));
+            }
+
+
+        }
+
+        String str = String.valueOf(sentence);
+
+        return str;
+    }
+
+
+
+
+    public static String DeCodeInformation (String stringinput)
+    {
+
+
+        System.out.print("shift : ");
+        Scanner inputshift = new Scanner(System.in);
+        int shift = inputshift.nextInt();
+
+        char[] sentence = stringinput.toCharArray();
+        int asci;
+
+        for (int i = 0; i < sentence.length; i++) {
+
+            asci = sentence[i];
+
+
+            if ((asci - shift) >= 65 && asci <= 90)
+            {
+                sentence[i] = (char) (asci - shift);
+            }
+
+            else if ((asci - shift) < 65 && asci <= 90)
+            {
+                if (asci<65)
+                    continue;
+
+                sentence[i] = (char) (91 - (65 - (asci - shift)));
+            }
+
+            else if ((asci - shift) >= 97 && (asci - shift) <= 122)
+            {
+                sentence[i] = (char) (asci - shift);
+            }
+
+            else if ((asci - shift) < 97 && asci >= 97)
+            {
+                sentence[i] = (char) ((123-(97 - (asci - shift))));
+            }
+
+        }
+
+
+        String str = String.valueOf(sentence);
+
+        return str;
+
+
+
+    }
+
+
+
+
+
+
+
+
+    public static void main(String[] args) {
+
+
+        String userfullname = "0";
+        String usernumber = "0";
+        String userID = "0";
+        String[] userinterests = {"0"};
+        String stringinformation ;
+
+
+        userfullname = fullname();
+        System.out.println("\n");
+
+
+        usernumber = phonenumber();
+        System.out.println("\n");
+
+        userID = userid();
+        System.out.println("\n");
+
+
+        userinterests = interests();
+        System.out.println("\n");
+
+
+        stringinformation = information1(userfullname, usernumber, userID, userinterests);
+
+
+        here :
+        while (true)
+        {
+            System.out.println("Encode information    (1) ");
+            System.out.println("Decode information    (2) ");
+            System.out.println("show   information    (3) ");
+            System.out.println("EXIT                  (4) ");
+            System.out.print  ("choose a option : "        );
+
+            Scanner input = new Scanner (System.in);
+            int switchkey = input.nextInt();
+
+
+
+
+
+            switch (switchkey)
+            {
+
+                case 1:
+
+                    stringinformation = EnCodeInformation(stringinformation);
+                    continue;
+
+                case 2:
+                    stringinformation = DeCodeInformation(stringinformation);
+                    continue;
+
+
+                case 3:
+
+                    String [] show = stringinformation.split("#");
+
+                    System.out.println("\n" + show[0]);
+
+                    for (int i=1 ; i<=show.length-2 ; i++)
+                    {
+                        System.out.println((i) + " : " + show[i]);
+                    }
+
+                    System.out.println(show[show.length-1] + "\n");
+
+                    System.out.print("enter (exit) for back : ");
+                    Scanner stop = new Scanner(System.in);
+                    String stop2 = stop.nextLine();
+                    System.out.println("\n");
+
+                    continue;
+
+                case 4:
+                    break here;
+
+            }
+        }
+
+    }
+}
+// payan . 40230212055
+
diff --git a/Answers/40230212055/RsumeMaker.java b/Answers/40230212055/RsumeMaker.java
new file mode 100644
index 0000000..cd2d09b
--- /dev/null
+++ b/Answers/40230212055/RsumeMaker.java
@@ -0,0 +1,199 @@
+package tamrin2_AP;
+
+import java.util.Scanner;
+
+public class RsumeMaker {
+
+
+
+    public static String fullname() {
+
+
+        Scanner input1 = new Scanner(System.in);
+        Scanner input2 = new Scanner(System.in);
+        System.out.print("enter first name : ");
+        String firstname = input1.nextLine();
+        System.out.print("enter last name : ");
+        String lastname = input2.nextLine();
+
+        String[] name1 = firstname.split("");
+        String[] name2 = lastname.split("");
+
+        name1[0] = name1[0].toUpperCase();
+        name2[0] = name2[0].toUpperCase();
+
+        for (int i = 1; i < name1.length; i++) {
+            name1[i] = name1[i].toLowerCase();
+            name1[0] += name1[i];
+        }
+
+        for (int i = 1; i < name2.length; i++) {
+            name2[i] = name2[i].toLowerCase();
+            name2[0] += name2[i];
+        }
+
+        name1[0] += " ";
+        name1[0] += name2[0];
+        System.out.println("Full name : " + name1[0]);
+
+
+        return name1[0];
+    }
+
+
+    public static String phonenumber() {
+
+
+        System.out.print("enter phune number(must be 11 digit) : ");
+
+        Scanner input = new Scanner(System.in);
+        String number1 = input.nextLine();
+        String[] number = number1.split("");
+
+
+        if (number.length == 11) {
+
+            for (int i = 1; i <= 10; i++) {
+                number[0] += number[i];
+            }
+
+            System.out.print("phone number : " + number[0]);
+
+            return number[0];
+
+        } else if (number[0] != "0" && number.length == 10) {
+
+            String str = "0";
+
+            for (int i = 0; i < number.length; i++) {
+                str += number[i];
+            }
+
+            System.out.print("phone number : " + str);
+
+            return str;
+
+        } else {
+            System.out.println("Wrong entry. Try again (enter (0)) : ");
+            phonenumber();
+        }
+
+
+        return " not found ";
+
+    }
+
+
+    public static String[] interests() {
+
+
+        System.out.print("number of interest : ");
+        Scanner input = new Scanner(System.in);
+        int limit = input.nextInt();
+
+        String[] interest = new String[limit];
+
+        for (int i = 0; i < limit; i++) {
+
+            System.out.print("interest " + (i + 1) + " : ");
+
+            Scanner input2 = new Scanner(System.in);
+            interest[i] = input2.nextLine();
+
+
+        }
+
+        System.out.println("your interests list : ");
+
+        for (int i = 0; i < limit; i++) {
+            System.out.println((i + 1) + " : " + interest[i]);
+        }
+
+        return interest;
+    }
+
+
+    public static String userid() {
+
+        System.out.print("enter ID : ");
+
+        Scanner input = new Scanner(System.in);
+        String id = input.nextLine();
+
+        System.out.println("you ID : " + id);
+
+        return id;
+    }
+
+
+    public static void information1(String fullname, String phonenumber, String ID, String[] interests) {
+
+        for (int i = 0; i < 3; i++) {
+            System.out.println("\n");
+        }
+
+        System.out.println("Hello! My name is " + fullname + "." + "My ID is " + ID + "." + "Here are some of myinterest:" + "\n");
+
+        for (int i = 0; i < interests.length; i++) {
+            System.out.println((i + 1) + " : " + interests[i]);
+        }
+
+        System.out.println("\n" + "You can reach me via my phone number " + phonenumber + " .");
+
+        //Hello! My name is Aryan Nourbakhsh. My ID is 40030111111. Here are some of my interests:
+
+    }
+
+
+    public static int option() {
+
+
+        System.out.println("enter first name & last name : (1) ");
+        System.out.println("enter phone number           : (2) ");
+        System.out.println("enter user ID                : (3) ");
+        System.out.println("enter interests              : (4) ");
+        System.out.println("show information             : (5) ");
+
+        System.out.print("choose a option : ");
+        Scanner input = new Scanner(System.in);
+        int switchkey = input.nextInt();
+
+        return switchkey;
+
+    }
+
+
+
+
+    public static void main(String[] args) {
+
+
+
+        String userfullname = "0";
+        String usernumber = "0";
+        String userID = "0";
+        String[] userinterests = {"0"};
+
+
+        userfullname = fullname();
+        System.out.println("\n");
+
+
+        usernumber = phonenumber();
+        System.out.println("\n");
+
+        userID = userid();
+        System.out.println("\n");
+
+
+        userinterests = interests();
+        System.out.println("\n");
+
+
+        information1(userfullname, usernumber, userID, userinterests);
+
+
+
+
+    }
+}