PropertyChangeListenerDemo.java Source code

Introduction

Here is the source code for PropertyChangeListenerDemo.java

Source

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Random;
import javax.swing.JButton;
import javax.swing.JFrame;

public class PropertyChangeListenerDemo {
    public static void main(String args[]) {
        Runnable runner = new Runnable() {
            public void run() {
                JFrame frame = new JFrame("Button Sample");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                final JButton button1 = new JButton("Select Me");
                final JButton button2 = new JButton("No Select Me");
                final Random random = new Random();
                // Define ActionListener
                ActionListener actionListener = new ActionListener() {
                    public void actionPerformed(ActionEvent actionEvent) {
                        JButton button = (JButton) actionEvent.getSource();
                        int red = random.nextInt(255);
                        int green = random.nextInt(255);
                        int blue = random.nextInt(255);
                        button.setBackground(new Color(red, green, blue));
                    }
                };
                // Define PropertyChangeListener
                PropertyChangeListener propertyChangeListener = new PropertyChangeListener() {
                    public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
                        String property = propertyChangeEvent.getPropertyName();
                        if ("background".equals(property)) {
                            button2.setBackground((Color) propertyChangeEvent.getNewValue());
                        }
                    }
                };
                button1.addActionListener(actionListener);
                button1.addPropertyChangeListener(propertyChangeListener);
                button2.addActionListener(actionListener);
                frame.add(button1, BorderLayout.NORTH);
                frame.add(button2, BorderLayout.SOUTH);
                frame.setSize(300, 100);
                frame.setVisible(true);
            }
        };
        EventQueue.invokeLater(runner);
    }
}