Bank-Account

import java.util.Scanner;

class BankAccount { private String accountHolder; private String accountNumber; private double balance;

public BankAccount(String accountHolder, String accountNumber, double initialBalance) { this.accountHolder = accountHolder; this.accountNumber = accountNumber; this.balance = initialBalance; }

public void deposit(double amount) { if (amount > 0) { balance += amount; System.out.println("Deposited: $" + amount); } else { System.out.println("Deposit amount must be positive."); } }

public void withdraw(double amount) { if (amount > balance) { System.out.println("Insufficient balance."); } else if (amount <= 0) { System.out.println("Withdraw amount must be positive."); } else { balance -= amount; System.out.println("Withdrew: $" + amount); } }

public void checkBalance() { System.out.println("Current balance: $" + balance); }

public void displayAccountInfo() { System.out.println("Account Holder: " + accountHolder); System.out.println("Account Number: " + accountNumber); System.out.println("Balance: $" + balance); } }

public class BankAccountApp { public static void main(String[] args) { BankAccount myAccount = new BankAccount("Sara Ahmed", "123456789", 1000.0); Scanner scanner = new Scanner(System.in); int choice;

System.out.println("🏦 Welcome to the Bank Account System!");

do {
    System.out.println("\nMenu:");
    System.out.println("1. Display account info");
    System.out.println("2. Check balance");
    System.out.println("3. Deposit");
    System.out.println("4. Withdraw");
    System.out.println("5. Exit");

    System.out.print("Enter your choice (1-5): ");
    while (!scanner.hasNextInt()) {
        System.out.println("Invalid input. Please enter a number between 1 and 5.");
        scanner.next();
    }

    choice = scanner.nextInt();

    switch (choice) {
        case 1:
            myAccount.displayAccountInfo();
            break;
        case 2:
            myAccount.checkBalance();
            break;
        case 3:
            System.out.print("Enter amount to deposit: ");
            double depositAmount = scanner.nextDouble();
            myAccount.deposit(depositAmount);
            break;
        case 4:
            System.out.print("Enter amount to withdraw: ");
            double withdrawAmount = scanner.nextDouble();
            myAccount.withdraw(withdrawAmount);
            break;
        case 5:
            System.out.println("Thank you for using the system. Goodbye!");
            break;
        default:
            System.out.println("Invalid choice. Please choose a number from 1 to 5.");
    }

} while (choice != 5);

scanner.close();

} }