Practical_7a.java

import java.util.Scanner;

class NotEnoughMoneyException extends Exception {
    public NotEnoughMoneyException(String message) {
        super(message);
    }
}

class Bank {
    private double balance;

    public Bank(double balance) {
        this.balance = balance;
    }

    public void deposit(double amount) {
        System.out.println("Depositing: " + amount);
        balance += amount;
        System.out.println("New Balance: " + balance);
    }

    public void withdraw(double amount) throws NotEnoughMoneyException {
        if (amount > balance) {
            System.out.println("Insufficient balance!");
            return;
        }
        balance -= amount;
        System.out.println("Withdrawn: " + amount);
        System.out.println("New Balance: " + balance);
        if (balance < 500) {
            throw new NotEnoughMoneyException("Balance below 500 Rs!");
        }
    }
}

public class Practical_7a {
    public static void main(String[] args) {
    	System.out.println("12402080503006");
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter initial balance: ");
        Bank account = new Bank(scanner.nextDouble());
        
        while (true) {
            System.out.println("\n1. Deposit  2. Withdraw  3. Exit");
            int choice = scanner.nextInt();
            
            if (choice == 1) {
                System.out.print("Enter amount: ");
                account.deposit(scanner.nextDouble());
            } else if (choice == 2) {
                System.out.print("Enter amount: ");
                try {
                    account.withdraw(scanner.nextDouble());
                } catch (NotEnoughMoneyException e) {
                    System.out.println(e.getMessage()+"Not have Sufficeient Balance");
                }
            } else {
                System.out.println("Goodbye!");
                break;
            }
        }
        scanner.close();
    }
}