Done :)

Answers/40230212070/ResumeMaker.java

@@ -0,0 +1,145 @@
+import java.util.ArrayList;
+import java.util.Scanner;
+
+public class ResumeMaker {
+    public static void main(String[] args){
+        Scanner scanner=new Scanner(System.in);
+        String firstName,lastName,phone="",userId="",interest;
+        ArrayList<String> interests=new ArrayList<>();
+        int shift =0;
+        System.out.println("Welcome to the Resume Maker!");
+        System.out.print("Enter your first name: ");
+        firstName = scanner.nextLine();
+        System.out.print("Enter your last name: ");
+        lastName = scanner.nextLine();
+        String fullName = fullName(firstName, lastName);
+        phone = getPhoneNumber(scanner);
+        userId = getUserId(scanner);
+        interests = getInterests(scanner);
+        String choice;
+        do{    System.out.println("\nHow would you like to see your information?");
+            System.out.println("1. Normal");
+            System.out.println("2. Encrypted (enter a shift value)");
+            System.out.println("3. Exit");
+            choice = scanner.nextLine();
+            switch (choice){
+
+                switch (choice) {
+                    case "1":
+                        System.out.println("\nYour information:");
+                        System.out.println(userFullInformation(fullName, phone, userId, interests));
+                        break;
+                    case "2":
+                        do {
+                            System.out.print("Enter a shift value for encryption (1-25): ");
+                            String inputShift = scanner.nextLine();
+                            if (!isInteger(inputShift) ||shift < 1 || shift > 25) {
+                                System.out.println("Invalid shift value. Please enter a number between 1 and 25.");
+                            } else {
+                                shift = Integer.parseInt(inputShift);
+                            }
+                        } while (shift < 1 || shift > 25);
+                        String encodedInfo = informationEncoder(userFullInformation(fullName, phone, userId, interests), shift);
+                        System.out.println("\nYour encoded information:");
+                        System.out.println(encodedInfo);
+                        break;
+                    case "3":
+                        System.out.println("Thank you for using the Resume Maker!");
+                        break;
+                    default:
+                        System.out.println("Invalid choice. Please enter 1, 2, or 3.");
+                }
+            } while (!choice.equals("3"));
+            }
+}
+    static boolean isInteger(String str) {
+        if (str == null || str.isEmpty()) {
+            return false;
+        }
+        return str.matches("\\d+");
+    }
+    static String fullName(String FirstName , String LastNAme){
+        FirstName=FirstName.toLowerCase();
+        LastNAme=LastNAme.toLowerCase();
+        String newFirstName=FirstName.substring(0,1).toUpperCase()+FirstName.substring(1);
+        String newLastName=LastNAme.substring(0,1).toUpperCase()+LastNAme.substring(1);
+        return newFirstName+" "+newLastName;
+    }
+    static String getPhoneNumber(Scanner scanner) {
+        String phone;
+        do {
+            System.out.print("Enter your phone number (10 digits starting with 9): ");
+            phone = scanner.nextLine();
+            if (phone.length() != 10 || phone.charAt(0) != '9') {
+                System.out.println("Invalid phone number. Please try again.");
+            }
+        } while (phone.length() != 10 || phone.charAt(0) != '9');
+
+        return "0" + phone;
+    }
+    static String getUserId(Scanner scanner) {
+        String userId;
+        do {
+            System.out.print("Enter your user ID (4 to 13 digits): ");
+            userId = scanner.nextLine();
+            if (!userId.matches("\\d+") || userId.length() < 4 || userId.length() > 13) {
+                System.out.println("Invalid user ID. Please enter 4 to 13 digits.");
+            }
+        } while (!userId.matches("\\d+") || userId.length() < 4 || userId.length() > 13);
+        return userId;
+    }
+    static ArrayList<String> getInterests(Scanner scanner) {
+        ArrayList<String> interests = new ArrayList<>();
+        String interest;
+
+        System.out.println("Enter your interests (up to 10, press enter to finish):");
+        while (interests.size() < 10 && (interest = scanner.nextLine().trim()).length() > 0) {
+            interests.add(interest);
+        }
+        return interests;
+    }
+    static String userFullInformation(String fullName, String phone, String userId, ArrayList<String> interests) {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Hello! My name is ").append(fullName).append(".\n");
+        sb.append("My ID is ").append(userId).append(".\n");
+        sb.append("Here are some of my interests:\n");
+        for (int i = 0; i < interests.size(); i++) {
+            sb.append((i + 1) + ". " + interests.get(i) + "\n");
+        }
+        sb.append("You can reach me via my phone number ").append(phone).append(".\n");
+        return sb.toString();
+    }
+    static String informationEncoder(String information, int shift) {
+        StringBuilder encryptedInfo = new StringBuilder();
+        for (char c : information.toCharArray()) {
+            if (Character.isAlphabetic(c)) {
+                int newChar = c + shift;
+                if (Character.isUpperCase(c) && newChar > 'Z') {
+                    newChar = newChar - 'Z' + 'A' - 1;
+                } else if (Character.isLowerCase(c) && newChar > 'z') {
+                    newChar = newChar - 'z' + 'a' - 1;
+                }
+                encryptedInfo.append((char) newChar);
+            } else {
+                encryptedInfo.append(c);
+            }
+        }
+        return encryptedInfo.toString();
+    }
+    static String informationDecoder(String information, int shift) {
+        StringBuilder decryptedInfo = new StringBuilder();
+        for (char c : information.toCharArray()) {
+            if (Character.isAlphabetic(c)) {
+                int newChar = c - shift;
+                if (Character.isUpperCase(c) && newChar < 'A') {
+                    newChar = newChar + 'Z' - 'A' + 1;
+                } else if (Character.isLowerCase(c) && newChar < 'a') {
+                    newChar = newChar + 'z' - 'a' + 1;
+                }
+                decryptedInfo.append((char) newChar);
+            } else {
+                decryptedInfo.append(c);
+            }
+        }
+        return decryptedInfo.toString();
+    }}