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關(guān)閉Java窗體的技巧

時(shí)間:2015-06-28 00:00:00 來(lái)源:IT貓撲網(wǎng) 作者:網(wǎng)管聯(lián)盟 我要評(píng)論(0)

  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.直接實(shí)現(xiàn)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);
  }
  }

#p#副標(biāo)題#e#

  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);
  }
  }

  5.間接實(shí)現(xiàn)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 voi

d 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的關(guān)全國(guó)計(jì)算機(jī)等級(jí)考試網(wǎng),加入收藏閉方法:
  setDefaultCloseOperation(EXIT_ON_CLOSE);
  frame的關(guān)閉方法如下:
  this.addWindowListener(new java.awt.event.WindowAdapter() {
  public void windowClosing(java.awt.event.WindowEvent e) {
  System.exit(0);
  }
  });

關(guān)鍵詞標(biāo)簽:Java

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