BANK ACCOUNT MANAGMENT SUYSTEM IN JAVA

import java.util.Scanner; // Importing Scanner for taking user input

// Class representing a Bank Account
class BankAccount {
    // Instance variables
    private String accountHolderName;
    private String accountNumber;
    private double balance;

    // Constructor to initialize the bank account
    public BankAccount(String accountHolderName, String accountNumber, double initialBalance) {
        this.accountHolderName = accountHolderName;
        this.accountNumber = accountNumber;
        this.balance = initialBalance;
    }

    // Method to deposit money into the account
    public void deposit(double amount) {
        if (amount > 0) {
            balance += amount;
            System.out.println("Successfully deposited Rs. " + amount);
        } else {
            System.out.println("Deposit amount must be positive.");
        }
    }

    // Method to withdraw money from the account
    public void withdraw(double amount) {
        if (amount > 0 && amount <= balance) {
            balance -= amount;
            System.out.println("Successfully withdrew Rs. " + amount);
        } else if (amount > balance) {
            System.out.println("Insufficient balance.");
        } else {
            System.out.println("Withdrawal amount must be positive.");
        }
    }

    // Method to check the balance of the account
    public void checkBalance() {
        System.out.println("Account Balance: Rs. " + balance);
    }

    // Method to display account details
    public void displayAccountDetails() {
        System.out.println("Account Holder: " + accountHolderName);
        System.out.println("Account Number: " + accountNumber);
        System.out.println("Current Balance: Rs. " + balance);
    }
}

// Main class to run the Bank Account Management System
public class BankSystem {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);

        // Prompting user to create an account
        System.out.print("Enter account holder name: ");
        String accountHolderName = input.nextLine();
        System.out.print("Enter account number: ");
        String accountNumber = input.nextLine();
        System.out.print("Enter initial deposit: ");
        double initialDeposit = input.nextDouble();

        // Creating a new BankAccount object
        BankAccount account = new BankAccount(accountHolderName, accountNumber, initialDeposit);
        System.out.println("Account successfully created!");

        int choice;
        do {
            // Displaying menu for user actions
            System.out.println("\n*** Bank Account Management System ***");
            System.out.println("1. Deposit Money");
            System.out.println("2. Withdraw Money");
            System.out.println("3. Check Balance");
            System.out.println("4. Display Account Details");
            System.out.println("5. Exit");
            System.out.print("Choose an option: ");
            choice = input.nextInt();

            // Switch case for different user actions
            switch (choice) {
                case 1:
                    System.out.print("Enter amount to deposit: ");
                    double depositAmount = input.nextDouble();
                    account.deposit(depositAmount);
                    break;
                case 2:
                    System.out.print("Enter amount to withdraw: ");
                    double withdrawAmount = input.nextDouble();
                    account.withdraw(withdrawAmount);
                    break;
                case 3:
                    account.checkBalance();
                    break;
                case 4:
                    account.displayAccountDetails();
                    break;
                case 5:
                    System.out.println("Thank you for using the Bank Account Management System.");
                    break;
                default:
                    System.out.println("Invalid choice. Please choose a valid option.");
                    break;
            }
        } while (choice != 5);

        // Closing the Scanner to prevent resource leak
        input.close();
    }
}

Enter account holder name: John Doe
Enter account number: 123456789
Enter initial deposit: 5000
Account successfully created!

*** Bank Account Management System ***
1. Deposit Money
2. Withdraw Money
3. Check Balance
4. Display Account Details
5. Exit
Choose an option: 1
Enter amount to deposit: 2000
Successfully deposited Rs. 2000

*** Bank Account Management System ***
1. Deposit Money
2. Withdraw Money
3. Check Balance
4. Display Account Details
5. Exit
Choose an option: 2
Enter amount to withdraw: 3000
Successfully withdrew Rs. 3000

*** Bank Account Management System ***
1. Deposit Money
2. Withdraw Money
3. Check Balance
4. Display Account Details
5. Exit
Choose an option: 3
Account Balance: Rs. 4000

*** Bank Account Management System ***
1. Deposit Money
2. Withdraw Money
3. Check Balance
4. Display Account Details
5. Exit
Choose an option: 5
Thank you for using the Bank Account Management System.