windowdestroyer.java

简易的具有GPS导航功能的程序。仅有四个点

import java.awt.event.*;

import javax.swing.*;
public class WindowDestroyer extends WindowAdapter
{

	public void windowClosing(WindowEvent e)
	{
		int result = JOptionPane.showConfirmDialog(null,"您确定要退出吗?","退出",0);
        if( result == 0 )System.exit(0);
     }
}