[笔记]java应用程序窗口关闭的六种方式

在这里做个笔记

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(String[] s){
　　new Frame1();
　　}
　　public void windowClosing(WindowEvent windowEvent) {
　　System.exit(0);
　　}
　　}

　　4.间接继承窗体适配器WindowAdapter　

//Frame1.java
　　import java.awt.*;
　　import java.awt.event.*;
　　public class Frame1 extends Frame {
　　public Frame1() {
　　this.setSize(new Dimension(400, 300));
　　this.setTitle(“Frame1”);
　　this.addWindowListener(new winAdapter());
　　this.setVisible(true);
　　}
　　public static void main(String[] s){
　　new Frame1();
　　}
　　}
　　class winAdapter extends WindowAdapter{
　　public void windowClosing(WindowEvent windowEvent) {
　　System.exit(0);
　　}
　　}

　　5.间接实现WindowListener接口

　//Frame1.java
　　import java.awt.*;
　　import java.awt.event.*;
　　public class Frame1 extends Frame {
　　public Frame1() {
　　this.setSize(new Dimension(400, 300));
　　this.setTitle(“Frame1”);
　　this.addWindowListener(new winEventHandle());
　　this.setVisible(true);
　　}
　　public static void main(String[] s){
　　new Frame1();
　　}
　　}
　　class winEventHandle implements WindowListener {
　　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) { }
　　}

　　6.使用Inner Class

//Frame1.java
　　import java.awt.*;
　　import java.awt.event.*;
　　public class Frame1{
　　public Frame1(){
　　Frame f=new Frame();
　　f.addWindowListener(new WindowAdapter(){
　　public void windowClosing(WindowEvent e){
　　System.exit(0);
　　}
　　});
　　f.setSize(new Dimension(400, 300));
　　f.setVisible(true);
　　}
　　public static void main(String[] s){
　　new Frame1();
　　}
　　}

　　Jframe的关闭方法：　  

setDefaultCloseOperation(EXIT_ON_CLOSE);
　　frame的关闭方法如下：
　　this.addWindowListener(new java.awt.event.WindowAdapter() {
　　public void windowClosing(java.awt.event.WindowEvent e) {
　　System.exit(0);
　　}
　　});
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