package chapter15;

/**
 * Title:        Chapter 15, "Multithreading"
 * Description:  Examples for Chapter 15
 * Copyright:    Copyright (c) 2000
 * Company:      Armstrong Atlantic State University
 * @author Y. Daniel Liang
 * @version 1.0
 */
// Clock.java: Show a running clock on the panel
import java.util.*;
import java.awt.event.*;
import javax.swing.Timer;
import chapter14.StillClock;

public class Clock extends StillClock implements ActionListener
{
  protected Timer timer;

  /**Default constructor*/
  public Clock()
  {
    this(Locale.getDefault(), TimeZone.getDefault());
  }

  /**Construct a clock with specified locale and time zone*/
  public Clock(Locale locale, TimeZone timeZone)
  {
    super(locale, timeZone);

    // Create a timer with delay 1000 ms and listener Clock
    timer = new Timer(1000, this);

    // Start the timer
    timer.start();
 }

  /**Resume the clock*/
  public void resume()
  {
    timer.start();
  }

  /**Suspend the clock*/
  public void suspend()
  {
    timer.stop();
  }

  /**Handle the action event*/
  public void actionPerformed(ActionEvent e)
  {
    repaint();
  }
}