Untitled

import java.applet.Applet;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class Practical1 extends Applet implements ActionListener {
    Label user, pass, message;
    TextField userText, passText;
    Button loginButton;

    public void init() {
        // Initialize components
        user = new Label("Username:");
        pass= new Label("Password:");
        message= new Label();

        userText = new TextField(20);
        passText = new TextField(20);
        passText.setEchoChar('*'); // To hide the password input

        loginButton = new Button("Login");

        // Set layout
        setLayout(null);

        // Position components
        user.setBounds(50, 50, 80, 30);
        userText.setBounds(150, 50, 150, 30);
        pass.setBounds(50, 100, 80, 30);
        passText.setBounds(150, 100, 150, 30);
        loginButton.setBounds(150, 150, 80, 30);
        message.setBounds(50, 200, 250, 30);

        // Add components to the container window
        add(user);
        add(userText);
        add(pass);
        add(passText);
        add(loginButton);
        add(message);



        // Add action listener 
        loginButton.addActionListener(this);
    }

    public void actionPerformed(ActionEvent e) {
        String username = userText.getText();
        String password = passText.getText();

        // validation for the username and password
        if (username.equals("admin") && password.equals("password")) {
            message.setText("Login successful!");
        } else {
            message.setText("Invalid username or password.");
        }
    }
}