java关闭窗口的6种方法

最新推荐文章于 2021-03-02 01:33:29 发布

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最新推荐文章于 2021-03-02 01:33:29 发布

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本文总结了多种Java窗体关闭的方法，包括使用JFrame的enableEvents和processWindowEvent、直接实现WindowListener接口、直接继承窗体适配器WindowAdapter等，并提供了具体的代码示例。

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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);

}

});