java 窗口关闭的六种方法
1.使用JFrame的enableEvents和processWindowEvent
//Frame1.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Frame1 extends JFrame {
public Frame1() {
enableEvents(AWTEvent.WINDOW_EVENT_MASK);
this.setSize(new Dimension(400, 300));
this.setTitle("Frame1");
}
protected void processWindowEvent(WindowEvent e) {
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
System.exit(0);
}
}
}
2.直接实现WindowListener接口
//Frame1.java
import java.awt.*;
import java.awt.event.*;
public class Frame1 extends Frame implements WindowListener {
public Frame1() {
this.setSize(new Dimension(400, 300));
this.setTitle("Frame1");
this.addWindowListener(this);
}
public void windowClosing(WindowEvent windowEvent) {
System.exit(0);
}
public void windowOpened(WindowEvent windowEvent) { }
public void windowClosed(WindowEvent windowEvent) { }
public void windowIconified(WindowEvent windowEvent) { }
public void windowDeiconified(WindowEvent windowEvent) { }
public void windowActivated(WindowEvent windowEvent) { }
public void windowDeactivated(WindowEvent windowEvent) { }
}
3.直接继承窗体适配器WindowAdapter
//Frame1.java
import java.awt.*;
import java.awt.event.*;
public class Frame1 extends WindowAdapter {
public Frame1() {
Frame f=new Frame();
f.setSize(new Dimension(400, 300));
f.setTitle("Frame1");
f.addWindowListener(this);
f.setVisible(true);
}
public static void main(St
相关文档：
package OALogic.sql.data;
import java.io.*;
public class FileOperate {
public FileOperate() {
}
public static void main(String args[]){
newFolder("D:/100");
}
/**
......
13.2.1 网络编程步骤
按照前面的基础知识介绍，无论使用TCP方式还是UDP方式进行网络通讯，网络编程都是由客户端和服务器端组成。当然，B/S结构的编程中只需要实现服务器端即可。所以，下面介绍网络编程的步骤时，均以C/S结构为基础进行介绍。
......
第一，谈谈final, finally, finalize的区别。
第二，Anonymous Inner Class (匿名内部类) 是否可以extends(继承)其它类，是否可以implements(实现)interface(接口)?
第三，Static Nested Class 和 Inner Class的不同，说得越多越好(面试题有的很笼统)。
第四� ......
今天同学问我一个Java问题，代码结构如下：
Scanner scan = new Scanner(System.in);
scan.next();
scan.close();
scan = new Scanner(System.in);
scan.next();
当程序运行到第五行是会抛出java.util.NoSuchElementException
at&nb ......
JAVA程序员必去的网站
2008-08-19 16:35
英文网站
http://www.javaalmanac.com - Java开发者年鉴一书的在线版本，想要快速查到某种Java技巧的用法及示例的代码这是一个不错的去处.
http://www.onjava.com - O'Reilly的Java网站. 每周都有新文章.
http://java.sun.com - 官方的Java开发者网站 - 每周都有新文章发表. ......
