其實這原本是一個有關java的基礎話題，不過既然有人提出來，不妨說兩句，順便也可做為初學者的一個參考。

//1.窗體啟動時最大化

//Frame1.java

import java.awt.*;

import java.awt.event.*;

import javax.swing.UIManager;

public class Frame1 extends WindowAdapter{

public Frame1() {

Frame f=new Frame();

f.addWindowListener(this);???? //將Frame1設為f的事件處理者

Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();???? //得到屏幕的尺寸

f.setLocation(0, 0);

f.setSize(screenSize.width,screenSize.height);????? //將窗體的尺寸設為屏幕的尺寸

f.setVisible(true);

}

public static void main(String[] args) {

new Frame1();

}

public void windowClosing(WindowEvent e) {

System.exit(0);

}

}

//2.關閉窗體的六種方法

//2.1.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);

}

}

}

//2.2.直接實現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) {? }

}

//2.3.直接繼承窗體適配器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);

}

}

//2.4.間接繼承窗體適配器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);

}

}

//2.5.間接實現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) {? }

}

//2.6.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();

}

總結

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