togglerollover.java

《精通Java Swing程序设计S》这本书所附带的JAVA程序写得很漂亮,都是SWING的实例子,很适合初学者。

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

public class ToggleRollover
{
    public static void main(String args[])
    {
        JFrame f = new JFrame("ToggleRollover");
        Container contentPane = f.getContentPane();
        JToggleButton b = new JToggleButton();
        b.setRolloverEnabled(true);
        b.setIcon(new ImageIcon(".\\icons\\rollover1.jpg"));
        b.setRolloverSelectedIcon(new ImageIcon(".\\icons\\rollover2.jpg"));
        b.setSelectedIcon(new ImageIcon(".\\icons\\rollover3.jpg"));
        contentPane.add(b);
        f.pack();
        f.show();
        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                    System.exit(0);
            }
        });
    }
}