// 1. Import necessary Swing packages
import javax.swing.*;

public class SimpleGUIApp {

    public static void main(String[] args) {
        // 2. Declare your class as a subclass of JFrame
        JFrame frame = new JFrame("Simple GUI App");

        // Create a button with text "Click me"
        JButton button = new JButton("Click me");

        // 3. Add UI components to the container
        frame.getContentPane().add(button);

        // Set the operation that will be performed when the user closes the window
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Set the frame size
        frame.setSize(300, 200);

        // Make the frame visible
        frame.setVisible(true);
    }
}

import javax.swing.*;
import java.awt.event.*;

public class InteractiveGUIApp {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Interactive GUI App");
        JButton button = new JButton("Click me");

        // 4. Write code to handle events
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                button.setText("You've clicked me!");
            }
        });

        frame.getContentPane().add(button);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}

import javax.swing.*;
import java.awt.event.*;

public class Exercise1 {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Exercise 1");
        JButton button = new JButton("Click me");
        JLabel label = new JLabel("Initial text");

        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                label.setText("Button clicked");
            }
        });

        frame.getContentPane().add(button);
        frame.getContentPane().add(label, BorderLayout.NORTH);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}

import javax.swing.*;
import java.awt.event.*;

public class Exercise2 {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Exercise 2");
        JButton button = new JButton("Submit");
        JLabel label = new JLabel("Your text will appear here");
        JTextField textField = new JTextField(20);

        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                label.setText(textField.getText());
            }
        });

        frame.getContentPane().add(button, BorderLayout.SOUTH);
        frame.getContentPane().add(label, BorderLayout.NORTH);
        frame.getContentPane().add(textField, BorderLayout.CENTER);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}