import java.awt.BorderLayout;

import java.awt.Container;

import java.awt.FlowLayout;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

// Main class for the bancjing application GUI

public class BankingApplicationGUI{

public static void main(String[] args){

// Create a BankAccountGUI object and show the menu

BankAccount bank1 = new BankAccount("Cris", "0001");

bank1.showMenu();

}

}

// GUI representing a bank account with GUI components

class BankAccount{

// Variables

int balance;

int previousTransaction;

String customerName;

String customerId;

// GUI components

JFrame frame; // Maine frame of the application

JLabel balanceLabel; // Label to display the balance

JTextField amountField; // Text field to input the amount

JTextArea outputArea; // Text area to display messages

// Set customer name and ID

BankAccount(String cname, String cid){

customerName = cname;

customerId = cid;

}

// Method to deposit the amount into the account

void deposit(int amount){

if (amount !=0){ // check if the amount is not zero

balance = balance + amount; // add the amount to the balance

previousTransaction = amount;

updateBalance();

}

}

// Method to withdraw an amount from the account

void withdraw(int amount){

if (amount != 0){ // check if the amount is not zero

balance = balance - amount; // subtract the amount from the balance

previousTransaction = -amount;

updateBalance();

}

}

// Method to display the previous transaction

void getPreviousTransaction(){

if (previousTransaction > 0){ // check if previous trans. was a deposit

System.out.println("Deposited: "+ previousTransaction);

} else if(previousTransaction < 0) { // check if privious trans. was a withdraw

System.out.println("Withdrawn: "+ Math.abs(previousTransaction));

} else { // the previous trans. was 0$ or this is a new account

System.out.println("No transaction is occured!");

}

}

// method to update the balance label

void updateBalance(){

balanceLabel.setText("Balance: $" + balance);

}

// Method to create and display the GUI

void showMenu(){

frame = new JFrame("Banking Application"); // create the main frame

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // set the default close operation

frame.setSize(400, 400); // set the size of the frame

Container container = frame.getContentPane(); // get the content pane of the frame

container.setLayout(new BorderLayout()); // set the layout to BorderLayout

// Top panel with customer information and balance

JPanel topPanel = new JPanel(); // panel for top section

topPanel.setLayout(new FlowLayout()); // set layout to FlowLayout

JLabel welcomLabel = new JLabel("Welcome" + customerName); // Create a label with the customer's name

JLabel idLabel = new JLabel("Your ID: " + customerId); // ...

balanceLabel = new JLabel(); // to display ...

// ... add

topPanel.add(welcomLabel);

topPanel.add(idLabel);

topPanel.add(balanceLabel);

container.add(topPanel, BorderLayout.NORTH);

// Center panel with action buttons

JPanel centerPanel = new JPanel();

centerPanel.setLayout(new GridLayout(5, 1));

// Create acyion buttons

JButton checkBalanceButton = new JButton("Check Balance");

JButton depositButton = new JButton("Deposit");

JButton withdrawButton = new JButton("Withdraw");

JButton previousTransactionButton = new JButton("Previouse Transaction");

JButton exitButton = new JButton("Exit");

// Add buttons to the center panel

centerPanel.add(checkBalanceButton);

centerPanel.add(depositButton);

centerPanel.add(withdrawButton);

centerPanel.add(previousTransactionButton);

centerPanel.add(exitButton);

//... add the center panel to the center section of the container

container.add(centerPanel, BorderLayout.CENTER);

// Bottom panel with amount input and output area

JPanel bottomPanel = new JPanel(); // create a panel to the bottom section

bottomPanel.setLayout(new FlowLayout()); // set the layout to FlowLayout

JLabel amountLabel = new JLabel("Enter the amount: ");

amountField = new JTextField(10); // text field for entering of amount

outputArea = new JTextArea(5, 30); // text area to display message

outputArea.setEditable(false); // make text area - non-editable

// ... set label, field at/and bottom panel

bottomPanel.add(amountLabel);

bottomPanel.add(amountField);

bottomPanel.add(new JScrollPane(outputArea));

container.add(bottomPanel, BorderLayout.SOUTH);

// Add action listeners to the buttons

// Action listener for the check balance button

checkBalanceButton.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e){

updateBalance();

}

});

// Action listener for the deposit button

depositButton.addActionListener(new ActionListener(){

@Override

public void actionPerformed(ActionEvent e){

int amount = Integer.parseInt(amountField.getText()); // get the amount from the text field

deposit(amount); // call the deposit method

outputArea.setText("Deposited: $" + amount); // display the deposited amount

}

});

// Action listener for the previous withdraw button

withdrawButton.addActionListener(new ActionListener(){

@Override

public void actionPerformed(ActionEvent e){

int amount = Integer.parseInt(amountField.getText()); // get the amount from the text field

withdraw(amount); // call the withdraw method

outputArea.setText("Withdrawn: $" + amount); // display the withdrawn amount

}

});

// Action listener for the previous transaction button

previousTransactionButton.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e){

getPreviousTransaction();

}

});

// Action listener for exit button

exitButton.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e){

frame.dispose();

}

});

// Make the frame visible

frame.setVisible(true);

}

}