package Chapter6;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.Date;

import javax.swing.JOptionPane;

import javax.swing.Timer;

public class InnerClassTest {

public static void main(String[] args) {

/*TalkingClock tc=new TalkingClock(1000,true);

tc.start();*/

TalkingClock tc=new TalkingClock();

tc.start(1000, true);

JOptionPane.showMessageDialog(null, "Quite");

System.exit(0);

}

}

/*class TalkingClock{

private int interval;

private boolean beep;

public TalkingClock(int interval, boolean beep) {

super();

this.interval = interval;

this.beep = beep;

}

public void start(){

ActionListener listener=new TimePrint();

Timer time=new Timer(interval, listener);

time.start();

}

public class TimePrint implements ActionListener{

public void actionPerformed(ActionEvent e) {

Date now=new Date();

System.out.println("The time is "+now);

if(beep)

Toolkit.getDefaultToolkit().beep();

}

}

}*/

/*

* 局部内部类

*

* 省去多余的变量

* 内部类可以访问局部变量，但是局部变量必须声明为final类型

* 因为TimePrint类在beep释放之前对其做了一个备份

* */

/*class TalkingClock{

public void start(int interval,final boolean beep){

class TimePrint implements ActionListener{

public void actionPerformed(ActionEvent e) {

Date now=new Date();

System.out.println("The time is "+now);

if(beep)

Toolkit.getDefaultToolkit().beep();

}

}

ActionListener listener=new TimePrint();

Timer time=new Timer(interval, listener);

time.start();

}

}*/

/*

*匿名内部类

*

*

*

* */

class TalkingClock{

public void start(int interval,final boolean beep){

ActionListener listener=new ActionListener() {

public void actionPerformed(ActionEvent e) {

Date now=new Date();

System.out.println("The time is "+now);

if(beep)

Toolkit.getDefaultToolkit().beep();

}

};

Timer time=new Timer(interval, listener);

time.start();

}

}