import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class InternetBankingSystem extends JFrame {
private JPanel loginPanel;
private JPanel mobileNumberPanel;
private JPanel otpPanel;
private JPanel bankPanel;
// Simulated database (for demonstration purposes only)
private String correctUsername = "Nishant V";
private String correctPassword = "password123";
private String correctMobileNumber = "25817"; // Last 5 digits of the mobile number
public InternetBankingSystem() {
// Set up the main frame
setTitle("Secure Internet Banking");
setSize(500, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(new CardLayout());
// Create panels
loginPanel = new JPanel();
mobileNumberPanel = new JPanel();
otpPanel = new JPanel();
bankPanel = new JPanel();
setupLoginPanel();
setupMobileNumberPanel();
setupOTPPanel();
setupBankPanel();
// Initially, show the login panel
add(loginPanel, "Login");
add(mobileNumberPanel, "MobileNumber");
add(otpPanel, "OTP");
add(bankPanel, "Bank");
showPanel("Login");
}
private void showPanel(String panelName) {
CardLayout cardLayout = (CardLayout) getContentPane().getLayout();
cardLayout.show(getContentPane(), panelName);
}
private void setupLoginPanel() {
loginPanel.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.insets = new Insets(30, 10, 5, 10); // Padding for top, left, bottom, right
JLabel titleLabel = new JLabel("Welcome to Secure Internet Banking");
titleLabel.setFont(new Font("Arial", Font.BOLD, 18));
loginPanel.add(titleLabel, gbc);
gbc.gridy = 1;
JLabel usernameLabel = new JLabel("Username:");
loginPanel.add(usernameLabel, gbc);
gbc.gridy = 2;
JLabel passwordLabel = new JLabel("Password:");
loginPanel.add(passwordLabel, gbc);
gbc.gridx = 1;
gbc.gridy = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
JTextField usernameField = new JTextField(20); // Increased width
loginPanel.add(usernameField, gbc);
gbc.gridy = 2;
JPasswordField passwordField = new JPasswordField(20); // Increased width
loginPanel.add(passwordField, gbc);
gbc.gridy = 3;
gbc.gridx = 0;
gbc.gridwidth = 2;
gbc.anchor = GridBagConstraints.CENTER;
JButton loginButton = new JButton("Login");
loginPanel.add(loginButton, gbc);
loginButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String username = usernameField.getText();
char[] passwordChars = passwordField.getPassword();
String password = new String(passwordChars);
if (!username.isEmpty() && !password.isEmpty()) {
if (username.equals(correctUsername) && password.equals(correctPassword)) {
showPanel("MobileNumber");
} else {
JOptionPane.showMessageDialog(null, "Invalid username or password.");
}
} else {
JOptionPane.showMessageDialog(null, "Please enter both username and password.");
}
// Clear the password field after use
passwordField.setText("");
}
});
}
private void setupMobileNumberPanel() {
mobileNumberPanel.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.insets = new Insets(20, 10, 5, 10); // Padding for top, left, bottom, right
JLabel mobileNumberLabel = new JLabel("Enter the last 5 digits of your mobile number:");
mobileNumberPanel.add(mobileNumberLabel, gbc);
gbc.gridy = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
JTextField mobileNumberField = new JTextField(10);
mobileNumberPanel.add(mobileNumberField, gbc);
gbc.gridy = 2;
gbc.gridx = 0;
gbc.gridwidth = 2;
gbc.anchor = GridBagConstraints.CENTER;
JButton submitMobileNumberButton = new JButton("Submit");
mobileNumberPanel.add(submitMobileNumberButton, gbc);
submitMobileNumberButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String mobileNumber = mobileNumberField.getText();
if (mobileNumber.equals(correctMobileNumber)) {
showPanel("OTP");
} else {
JOptionPane.showMessageDialog(null, "Incorrect mobile number.");
}
// Clear the mobile number field after use
mobileNumberField.setText("");
}
});
}
private void setupOTPPanel() {
otpPanel.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.insets = new Insets(20, 10, 5, 10); // Padding for top, left, bottom, right
JLabel otpMessageLabel = new JLabel("OTP sent to your registered mobile number.");
otpPanel.add(otpMessageLabel, gbc);
gbc.gridy = 1;
JLabel otpLabel = new JLabel("Enter OTP:");
otpPanel.add(otpLabel, gbc);
gbc.gridy = 2;
gbc.fill = GridBagConstraints.HORIZONTAL;
JTextField otpField = new JTextField(10);
otpPanel.add(otpField, gbc);
gbc.gridy = 3;
gbc.gridx = 0;
gbc.gridwidth = 2;
gbc.anchor = GridBagConstraints.CENTER;
JButton submitOtpButton = new JButton("Submit OTP");
otpPanel.add(submitOtpButton, gbc);
gbc.gridy = 4;
JButton resendOtpButton = new JButton("Resend OTP");
otpPanel.add(resendOtpButton, gbc);
submitOtpButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String otp = otpField.getText();
// For this example, just show the bank panel without actual OTP verification
showPanel("Bank");
}
});
resendOtpButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// Simulate OTP resend process
otpMessageLabel.setText("OTP resent to your registered mobile number.");
}
});
}
private void setupBankPanel() {
bankPanel.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.insets = new Insets(20, 10, 5, 10); // Padding for top, left, bottom, right
JButton viewBalanceButton = new JButton("View Balance");
JButton transferAmountButton = new JButton("Transfer Amount");
bankPanel.add(viewBalanceButton, gbc);
gbc.gridy = 1;
bankPanel.add(transferAmountButton, gbc);
// Add action listeners for bank panel buttons
viewBalanceButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// Implement view balance functionality
JOptionPane.showMessageDialog(null, "View Balance functionality is not implemented yet.");
}
});
transferAmountButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// Implement transfer amount functionality
JOptionPane.showMessageDialog(null, "Transfer Amount functionality is not implemented yet.");
}
});
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
InternetBankingSystem bankingSystem = new InternetBankingSystem();
bankingSystem.setVisible(true);
}
});
}
}
