ATMExample.java

import java.util.Scanner;

public class ATMExample {
    public static void main(String[] args) {

        int balance = 100000, withdraw, deposit;

        Scanner sc = new Scanner(System.in);

        int pin = 1234;
        int enteredPin;
        int attempts = 0;

        while (true) {
            System.out.print("Enter your ATM PIN: ");
            enteredPin = sc.nextInt();

            if (enteredPin == pin) {
                System.out.println("access granted\n");
                break;
            } else {
                attempts++;
                System.out.println("incorrect PIN");

                if (attempts == 3) {
                    System.out.println("Too many failed attempts.");
                    System.exit(0);
                }
            }
        }
        while (true) {
            System.out.println("===== Automated Teller Machine =====");
            System.out.println("1. Withdraw");
            System.out.println("2. Deposit");
            System.out.println("3. Check Balance");
            System.out.println("4. Exit");
            System.out.print("Choose an option: ");

            int choice = sc.nextInt();

            switch (choice) {
                case 1:
                    System.out.print("Enter money to withdraw: ");
                    withdraw = sc.nextInt();

                   
                    if (balance >= withdraw) {
                        balance = balance - withdraw;
                        System.out.println("Please collect your money");
                    } else {
                        System.out.println("nsufficient Balance");
                    }
                    System.out.println();
                    break;

                case 2:
                    System.out.print("Enter money to deposit: ");
                    deposit = sc.nextInt();

                    balance = balance + deposit;
                    System.out.println("Money deposited successfully");
                    System.out.println();
                    break;

                case 3:
                    System.out.println("Balance: " + balance);
                    System.out.println();
                    break;

                case 4:
                    System.out.println("Thank you for using ATM!");
                    System.exit(0);

                default:
                    System.out.println("nvalid Choice\n");
            }
        }
    }
}