Email.java

import java.util.Random;
import java.util.Scanner;

class EmailApp {
 private String firstName;
 private String lastName;
 private String department;
 private String alternateEmail;
 private String email;
 private String companySuffix = "xyz.com";
 private int mailboxCapacity = 500;
 private int defaultPasswordLength = 10;
 private char[] password;

 // Constructor for first and last name
 public EmailApp(String firstName, String lastName) {
 this.firstName = firstName;
 this.lastName = lastName;
 System.out.println("NEW EMPLOYEE: " + this.firstName + " " + this.lastName);

 // Method for calling department
 this.department = setDepartment();
 System.out.println("Your Department is: " + this.department);

 // Call method for random password
 this.password = generatePassword(defaultPasswordLength);
 System.out.println("Your password is: " + new String(this.password));

 // Combining email
 email = firstName.toLowerCase() + "." + lastName.toLowerCase() + "@" + department.toLowerCase() + "." + companySuffix;
 System.out.println("Your Email is: " + email);
 }

 // Method for asking department
 private String setDepartment() {
 System.out.println("Department Codes: \n1. Sales \n2. Development \n3. Accounts \nEnter your Department:");
 Scanner read = new Scanner(System.in);
 int depChoice = read.nextInt();
 if (depChoice == 1) {
 return "sales";
 } else if (depChoice == 2) {
 return "development";
 } else if (depChoice == 3) {
 return "accounts";
 } else {
 return "none";
 }
 }

 // Generate random password
 private char[] generatePassword(int len) {
 String capitalChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 String smallChars = "abcdefghijklmnopqrstuvwxyz";
 String numbers = "0123456789";
 String values = capitalChars + smallChars + numbers;

 Random random = new Random();
 char[] password = new char[len];

 for (int i = 0; i < len; i++) {
 password[i] = values.charAt(random.nextInt(values.length()));
 }
 return password;
 }

 // Set mailbox capacity
 public void setMailboxCapacity(int capacity) {
 this.mailboxCapacity = capacity;
 }

 // Set the alternate email
 public void setAlternateEmail(String altEmail) {
 this.alternateEmail = altEmail;
 }

 // Change the password
 public void setPassword(String password) {
 this.password = password.toCharArray();
 }

 // Change department
 public void changeDepartment(String newDepartment) {
 this.department = newDepartment;
 this.email = firstName.toLowerCase() + "." + lastName.toLowerCase() + "@" + department.toLowerCase() + "." + companySuffix;
 }

 // Get mailbox capacity
 public int getMailboxCapacity() {
 return mailboxCapacity;
 }

 // Get the alternate email
 public String getAlternateEmail() {
 return alternateEmail;
 }

 // Get the password
 public String getPassword() {
 return new String(password);
 }

 // Display employee information
 public String showInfo() {
 return "\nDISPLAY NAME: " + firstName + " " + lastName +
 "\nCOMPANY EMAIL: " + email +
 "\nMAILBOX CAPACITY: " + mailboxCapacity + "mb";
 }

 // Display all employee details
 public String displayAllDetails() {
 return showInfo() +
 "\nALTERNATE EMAIL: " + (alternateEmail != null ? alternateEmail : "Not Set") +
 "\nPASSWORD: " + new String(password);
 }
}

// Main Method
public class Email {
 public static void main(String[] args) {
 Scanner scanner = new Scanner(System.in);

 // Get employee's first and last name
 System.out.print("Enter first name: ");
 String firstName = scanner.nextLine();
 System.out.print("Enter last name: ");
 String lastName = scanner.nextLine();

 EmailApp em1 = new EmailApp(firstName, lastName);

 // Admin Actions Menu
 while (true) {
 System.out.println("\n--- Admin Actions ---");
 System.out.println("1. Set Alternate Email");
 System.out.println("2. Set Mailbox Capacity");
 System.out.println("3. Change Department");
 System.out.println("4. Reset Password");
 System.out.println("5. Display All Details");
 System.out.println("6. Exit");

 System.out.print("Choose an option: ");
 int choice = scanner.nextInt();
 scanner.nextLine(); // Consume newline

 switch (choice) {
 case 1:
 System.out.print("Enter alternate email: ");
 String altEmail = scanner.nextLine();
 em1.setAlternateEmail(altEmail);
 System.out.println("Alternate Email Set: " + em1.getAlternateEmail());
 break;
 case 2:
 System.out.print("Enter new mailbox capacity: ");
 int capacity = scanner.nextInt();
 em1.setMailboxCapacity(capacity);
 System.out.println("Mailbox Capacity Updated: " + em1.getMailboxCapacity() + "mb");
 break;
 case 3:
 System.out.print("Enter new department: ");
 String newDepartment = scanner.nextLine();
 em1.changeDepartment(newDepartment);
 System.out.println("Department changed successfully to " + newDepartment);
 System.out.println("Your new email is: " + em1.showInfo());
 break;
 case 4:
 System.out.print("Enter new password: ");
 String newPassword = scanner.nextLine();
 em1.setPassword(newPassword);
 System.out.println("Password Updated: " + em1.getPassword());
 break;
 case 5:
 System.out.println("\n--- Displaying All Details ---");
 System.out.println(em1.displayAllDetails());
 break;
 case 6:
 System.out.println("Exiting Admin Actions.");
 System.exit(0);
 break;
 default:
 System.out.println("Invalid option. Please try again.");
 }
 }
 }
}