InnerClassTest

gistfile1.java

//InnerClassTest.java

import javax.swing.*;

public class InnerClassTest
{
   public static void main(String[] args)
   {
	      TalkingClock clock = new TalkingClock(1000, true);
//	      TalkingClock.setBeep(false);
	      clock.start();
	      

// keep program running until user selects "Ok"
	      JOptionPane.showMessageDialog(null, "Quit program?");
	      System.exit(0);
   }
}

//TalkingClock.java

import java.awt.event.ActionListener;
import javax.swing.Timer;

public class TalkingClock
{

   public TalkingClock(int interval, boolean beep)
   {
	   this.interval = interval;
	   TalkingClock.setBeep(beep);

   }

   public void start()
   {
	   ActionListener listener = new TimePrinter();
	   Timer t = new Timer(interval, listener);
	   t.start();
   }


   public static boolean isBeep() {
	   return beep;
   }
	
   public static void setBeep(boolean beep) {
	   TalkingClock.beep = beep;
   }


   private int interval;
   private static boolean beep;
}

//TimePrinter.java


import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Date;


public class TimePrinter implements ActionListener
{
	public void actionPerformed(ActionEvent event)
    {
		
       Date now = new Date();
       System.out.println("The time is " + now);
       if (TalkingClock.isBeep()) Toolkit.getDefaultToolkit().beep();
    }
}