diff --git a/Answers/40230112050/project.java b/Answers/40230112050/project.java
new file mode 100644
index 0000000..80080f1
--- /dev/null
+++ b/Answers/40230112050/project.java
@@ -0,0 +1,147 @@
+import java.util.Objects;
+import java.util.Scanner;
+
+public class project {
+    public static void main(String[] args) {
+        String First_name, Last_name, phonenumber = "null" , ID = "null" , intrest = "null";
+        Scanner input = new Scanner(System.in);
+        System.out.println("please enter your first_name: ");
+        First_name = input.nextLine();
+        System.out.println("please enter your last_name: ");
+        Last_name = input.nextLine();
+        String alfabet = "abcdefghijklmnopqrstuvwxyz";
+        String[]alfabet1 = {"a" , "b" , "c" , "d", "e","f","g","h" , "i" , "j" , "k" ,"l" ,"m" , "n", "o" , "p" ,"q","r","s","t","u","v", "w" , "x", "y","z"};
+
+        int i = 3;
+
+
+
+        String testo ="Hello! My name is " + Fullname(First_name , Last_name) +". My ID is "+ ID(ID) +".here are some of my intrests:"+ intrest(intrest) + "\nyou can reach me via my phone number "+ final_phonenumber(phonenumber);
+        //System.out.format("Hello! My name is %s. My ID is %s.here are some of my intrests:%s \nyou can reach me via my phone number %s " , Fullname(First_name , Last_name) , ID(ID) , intrest(intrest) , final_phonenumber(phonenumber));
+        String test = testo.toLowerCase();
+        String[]test1 = test.split("");
+        System.out.println("\ndo you want to see the encoded result: ");
+        String y = input.nextLine();
+        if(Objects.equals(y, "no") || Objects.equals(y, "-"))
+            System.out.println(testo);
+        else if(Objects.equals(y, "yes") || Objects.equals(y, "+")  ) {
+            for (int x = 0; x < test1.length; x++) {
+                if (test1[x] == " ") continue;
+                int f = alfabet.indexOf(test1[x]) + i;
+                if (f > 26)
+                    f %= 26;
+                test1[x] = alfabet1[f];
+                System.out.print(test1[x]);
+            }
+        }
+
+
+
+
+
+
+
+
+
+
+    }
+
+    public static String Fullname(String First_name, String last_name) {
+        First_name = First_name.toLowerCase();
+        last_name = last_name.toLowerCase();
+
+
+        String[] list = First_name.split("");
+        String[] list_2 = last_name.split("");
+        list[0] = list[0].toUpperCase();
+        list_2[0] = list_2[0].toUpperCase();
+        for (int i = 1; i < list.length; i++) {
+            list[0] += list[i];
+
+        }
+
+        for (int i = 1; i < list_2.length; i++) {
+            list_2[0] += list_2[i];
+        }
+
+        String Fullname = list[0] + " " + list_2[0];
+
+        return Fullname;
+    }
+
+    public static String final_phonenumber(String phonenumber) {
+        Scanner input = new Scanner(System.in);
+        System.out.println("please enter your phone_number: ");
+        phonenumber = input.nextLine();
+        String[] phone = phonenumber.split("");
+        while (true) {
+            if (phone.length <= 11 && phone.length >= 10 && (Objects.equals(phone[0], "9") || Objects.equals(phone[0], "0"))) {
+                break;
+            }
+            System.out.println("WRONG! please try again!");
+            phonenumber = input.nextLine();
+            phone = phonenumber.split("");
+        }
+        if (phone[0] .equals("9")) {
+            for(int i = 1 ; i < phone.length ; i++){
+                phone[0] += phone[i];
+            }
+            phone[0] = "0" + phone[0];
+        }
+        else if(phone[0].equals("0")){
+            for(int x = 1 ; x < phone.length ; x++){
+                phone[0] += phone[x];
+            }
+        }
+        return phone[0];
+    }
+
+    public static String ID(String ID) {
+        Scanner input = new Scanner(System.in);
+        System.out.println("please enter ur ID: ");
+        ID = input.nextLine();
+
+        String[] id = ID.split("");
+
+        while(true){
+            if(id.length < 13 && id.length > 4 ) {
+                break;
+            }
+            System.out.println("Wrong please try again");
+            ID = input.nextLine();
+            id = ID.split("");
+        }
+        for(int i = 1 ; i < id.length ; i++){
+            id[0] += id[i];
+        }
+        return id[0];
+    }
+
+    public static String intrest(String intrest) {
+        String[] intrests_list = new String[10];
+        String[]list = new String[10];
+        list[0] = " ";
+
+        System.out.println("please enter ur intrests: ");
+
+
+        for(int i = 0 ; i < 10 ; i++){
+            Scanner input = new Scanner(System.in);
+            intrest = input.nextLine();
+
+            intrests_list[i] = intrest;
+            if(intrests_list[i] == "end")break;
+        }
+
+
+        for(int x = 1 ; x < 11 ; x++){
+
+            list[0] += "\n" + x + "_" + intrests_list[x - 1];
+        }
+        return list[0];
+
+    }
+
+    }
+
+