UsingComponentListener.java Source code

Introduction

Here is the source code for UsingComponentListener.java

Source

import java.awt.Component;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;

import javax.swing.JCheckBox;
import javax.swing.JFrame;

public class UsingComponentListener {

    public static void main(String[] a) {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JCheckBox checkbox = new JCheckBox("Label visible", true);
        checkbox.addComponentListener(new ComponentListener() {
            public void componentHidden(ComponentEvent e) {
                System.out.println("componentHidden event from " + e.getComponent().getClass().getName());
            }

            public void componentMoved(ComponentEvent e) {
                Component c = e.getComponent();
                System.out.println("componentMoved event from " + c.getClass().getName() + "; new location: "
                        + c.getLocation().x + ", " + c.getLocation().y);
            }

            public void componentResized(ComponentEvent e) {
                Component c = e.getComponent();
                System.out.println("componentResized event from " + c.getClass().getName() + "; new size: "
                        + c.getSize().width + ", " + c.getSize().height);
            }

            public void componentShown(ComponentEvent e) {
                System.out.println("componentShown event from " + e.getComponent().getClass().getName());
            }

        });

        frame.add(checkbox, "North");

        frame.setSize(300, 200);
        frame.setVisible(true);
    }

}