java使窗体最大化_[转]java窗体运行时最大化及关闭方法示例

其实这原本是一个有关java的基础话题，不过既然有人提出来，不妨说两句，顺便也可做为初学者的一个参考。

//1.窗体启动时最大化

//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);     //将Frame1设为f的事件处理者

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

f.setLocation(0, 0);

f.setSize(screenSize.width,screenSize.height);      //将窗体的尺寸设为屏幕的尺寸

f.setVisible(true);

}

public static void main(String[] args) {

new Frame1();

}

public void windowClosing(WindowEvent e) {

System.exit(0);

}

}

//2.关闭窗体的六种方法

//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) {  }

}

//2.3.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);

}

}

//2.4.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);

}

}

//2.5.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) {  }

}

//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();

}