driver.java

来自「Java程序设计(美) David D. Riley著 机械工业出版社 书籍配套」· Java 代码 · 共 32 行

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

/** Example of event delegation  (Figure 9.31)
 * Author: David Riley
 * Date: January, 2005 
 */
public class Driver implements ActionListener {
    private JFrame  window;
	private JButton simpleButton;

	/**	post:	window is created at (10, 10) with width and height of 200
	 *			and  simpleButton is added to window 
	 */
	public Driver()  {
		window = new JFrame("JButton Delegate");
		window.setBounds(10, 10, 200, 200);
		window.setVisible(true);
		window.setLayout(null);
		simpleButton = new JButton("Click Me");
		simpleButton.setBounds(50, 80, 100, 40);
		simpleButton.addActionListener( this );
		window.add( simpleButton, 0 );
		window.repaint();
    }
    
	/**	post:	a CLICKED message has been output. */
    public  void  actionPerformed( ActionEvent e )   {
		System.out.println( "CLICKED" );
	}
}