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Java事件处理机制 - 事件监听器的四种实现方式(转)

2012-02-05 10:25 731 查看

转自http://wcily123.iteye.com/blog/345221

自身类作为事件监听器
外部类作为事件监听器
匿名内部类作为事件监听器
内部类作为事件监听器
自身类作为事件监听器
:

Java代码

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/**
*Java事件处理机制:自身类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class ThisClassEvent extends JFrame implements ActionListener{

    JButton btn;

    public ThisClassEvent(){

        super("Java事件监听机制");

        setLayout(new FlowLayout());

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        btn=new JButton("点击");

        btn.addActionListener(this);

        getContentPane().add(btn);

        setBounds(200,200,300,160);

        setVisible(true);

    }

    /**************************************/

    public void actionPerformed (ActionEvent e){

        Container c=getContentPane();
        c.setBackground(Color.red);
    }
    /**************************************/


    public static void main(String args[]){

        new ThisClassEvent();

    }
}

Java代码

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/**
*Java事件处理机制:自身类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class ThisClassEvent extends JFrame implements ActionListener{
    JButton btn;

    public ThisClassEvent(){
        super("Java事件监听机制");
        setLayout(new FlowLayout());
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        btn=new JButton("点击");
        btn.addActionListener(this);
        getContentPane().add(btn);

        setBounds(200,200,300,160);
        setVisible(true);
    }

    /**************************************/
    public void actionPerformed (ActionEvent e){
        Container c=getContentPane();
        c.setBackground(Color.red);
    }
    /**************************************/

    public static void main(String args[]){
        new ThisClassEvent();
    }
}

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/**
*Java事件处理机制:自身类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class ThisClassEvent extends JFrame implements ActionListener{
JButton btn;

public ThisClassEvent(){
super("Java事件监听机制");
setLayout(new FlowLayout());
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

btn=new JButton("点击");
btn.addActionListener(this);
getContentPane().add(btn);

setBounds(200,200,300,160);
setVisible(true);
}

/**************************************/
public void actionPerformed (ActionEvent e){
Container c=getContentPane();
c.setBackground(Color.red);
}
/**************************************/

public static void main(String args[]){
new ThisClassEvent();
}
}

外部类作为事件监听器
:

Java代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
*Java事件处理机制:外部类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class OuterClassEvent extends JFrame{

    JButton btn;

    public OuterClassEvent(){

        super("Java事件监听机制");

        setLayout(new FlowLayout());

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        btn=new JButton("点击");

        btn.addActionListener(new OuterClass(this));

        getContentPane().add(btn);

        setBounds(200,200,300,160);

        setVisible(true);

    }

    public static void main(String args[]){

        new OuterClassEvent();

    }
}

/*外部类*********************************/

class OuterClass implements ActionListener{

    OuterClassEvent oce;

    public OuterClass(OuterClassEvent oce){

        this.oce = oce;

    }

    public void actionPerformed(ActionEvent e){

        Container c=oce.getContentPane();
        c.setBackground(Color.red);
    }
}

Java代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
*Java事件处理机制:外部类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class OuterClassEvent extends JFrame{
    JButton btn;

    public OuterClassEvent(){
        super("Java事件监听机制");
        setLayout(new FlowLayout());
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        btn=new JButton("点击");
        btn.addActionListener(new OuterClass(this));
        getContentPane().add(btn);

        setBounds(200,200,300,160);
        setVisible(true);
    }

    public static void main(String args[]){
        new OuterClassEvent();
    }
}

/*外部类*********************************/
class OuterClass implements ActionListener{
    OuterClassEvent oce;

    public OuterClass(OuterClassEvent oce){
        this.oce = oce;
    }

    public void actionPerformed(ActionEvent e){
        Container c=oce.getContentPane();
        c.setBackground(Color.red);
    }
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
*Java事件处理机制:外部类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class OuterClassEvent extends JFrame{
JButton btn;

public OuterClassEvent(){
super("Java事件监听机制");
setLayout(new FlowLayout());
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

btn=new JButton("点击");
btn.addActionListener(new OuterClass(this));
getContentPane().add(btn);

setBounds(200,200,300,160);
setVisible(true);
}

public static void main(String args[]){
new OuterClassEvent();
}
}

/*外部类*********************************/
class OuterClass implements ActionListener{
OuterClassEvent oce;

public OuterClass(OuterClassEvent oce){
this.oce = oce;
}

public void actionPerformed(ActionEvent e){
Container c=oce.getContentPane();
c.setBackground(Color.red);
}
}

匿名内部类作为事件监听器
:

Java代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
*Java事件处理机制:匿名内部类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class AnonymousEvent extends JFrame{

    JButton btn;

    public AnonymousEvent(){

        super("Java事件监听机制");

        setLayout(new FlowLayout());

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        btn=new JButton("点击");

        /*匿名内部类******************************/

        btn.addActionListener(
            new ActionListener(){

                public void actionPerformed(ActionEvent e){

                    Container c=getContentPane();
                    c.setBackground(Color.red);
                }
            }
        );
        /***************************************/

        getContentPane().add(btn);

        setBounds(200,200,300,160);

        setVisible(true);

    }

    public static void main(String args[]){

        new AnonymousEvent();

    }
}

Java代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
*Java事件处理机制:匿名内部类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class AnonymousEvent extends JFrame{
    JButton btn;

    public AnonymousEvent(){
        super("Java事件监听机制");
        setLayout(new FlowLayout());
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        btn=new JButton("点击");
        /*匿名内部类******************************/
        btn.addActionListener(
            new ActionListener(){
                public void actionPerformed(ActionEvent e){
                    Container c=getContentPane();
                    c.setBackground(Color.red);
                }
            }
        );
        /***************************************/
        getContentPane().add(btn);

        setBounds(200,200,300,160);
        setVisible(true);
    }

    public static void main(String args[]){
        new AnonymousEvent();
    }
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
*Java事件处理机制:匿名内部类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class AnonymousEvent extends JFrame{
JButton btn;

public AnonymousEvent(){
super("Java事件监听机制");
setLayout(new FlowLayout());
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

btn=new JButton("点击");
/*匿名内部类******************************/
btn.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
Container c=getContentPane();
c.setBackground(Color.red);
}
}
);
/***************************************/
getContentPane().add(btn);

setBounds(200,200,300,160);
setVisible(true);
}

public static void main(String args[]){
new AnonymousEvent();
}
}

内部类作为事件监听器:

Java代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
*Java事件处理机制:内部类作为事件监听器
*@author Winty(wintys@gmail.com)
*@version 2008-12-3
*/
class InnerClassEvent extends JFrame{

    JButton btn;

    public InnerClassEvent(){

        super("Java事件监听机制");

        setLayout(new FlowLayout());

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        btn=new JButton("点击");

        btn.addActionListener(new InnerClass());

        getContentPane().add(btn);

        setBounds(200,200,300,160);

        setVisible(true);

    }

    /*内部类*********************************/

    class InnerClass implements ActionListener{

        public void actionPerformed (ActionEvent e){

            Container c=getContentPane();
            c.setBackground(Color.red);
        }
    }
    /**************************************/


    public static void main(String args[]){

        new InnerClassEvent();

    }
}

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