Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javax.swing.AbstractButton;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JOptionPane;

public class Main {
    public static void main(String[] args) {
        JButton bn = new JButton("asdf");
        bn.addPropertyChangeListener(new AbstractButtonPropertyChangeListener());

        bn.setText("java2s.com");

        JOptionPane.showMessageDialog(null, bn);
    }
}

class AbstractButtonPropertyChangeListener implements PropertyChangeListener {

    public void propertyChange(PropertyChangeEvent e) {
        String propertyName = e.getPropertyName();
        System.out.println("Property Name: " + propertyName);
        if (e.getPropertyName().equals(AbstractButton.TEXT_CHANGED_PROPERTY)) {
            String newText = (String) e.getNewValue();
            String oldText = (String) e.getOldValue();
            System.out.println(oldText + " changed to " + newText);
        } else if (e.getPropertyName().equals(AbstractButton.ICON_CHANGED_PROPERTY)) {
            Icon icon = (Icon) e.getNewValue();
            if (icon instanceof ImageIcon) {
                System.out.println("New icon is an image");
            }
        }
    }
}