Java GUI development using AWT - Create a basic GUI window with a Button and a Label

One of our student's asked us a query on how he can write a code for Java GUI development using AWT. He wanted an example and our Java Tutors helped him understand the concept and solve 10-12 basic Java GUI problem. This problem written here is one of those. This example creates a basic GUI window with a button and a label. When the button is clicked, the label's text is updated.

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

public class SimpleAWTExample {
    // Declare components
    private Frame frame;
    private Button button;
    private Label label;

    public SimpleAWTExample() {
        // Initialize components
        frame = new Frame("Java AWT Example");
        button = new Button("Click Me");
        label = new Label("Hello, World!");

        // Set layout manager
        frame.setLayout(new FlowLayout());

        // Add components to the frame
        frame.add(button);
        frame.add(label);

        // Add action listener to the button
        button.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // Update label text when button is clicked
                label.setText("Button Clicked!");
            }
        });

        // Set frame properties
        frame.setSize(300, 150);
        frame.setVisible(true);

        // Handle window closing event
        frame.addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent windowEvent) {
                System.exit(0);
            }
        });
    }

    public static void main(String[] args) {
        new SimpleAWTExample();
    }
}
 

This example creates a simple GUI window with a button and a label. When the button is clicked, the label's text is updated.