新建 文本文档.txt

用java语言编写的图形用户界面简单的几个程序

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

public class WindowClosing()
{  
	public static void main(String[] args)
	{  
		JFrame frame = new JFrame();
		frame.addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent e)
			{
				System.exit(0);
			}
		});
		frame.show();
         }  
}