java中AWT如何关闭窗口_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