import java.awt.Graphics;
import java.awt.Font;         //clases importadas
import java.util.Date;
 
     //declaracion del applet, el subproceso(runnable) y las variables

  public class DigitalClock extends java.applet.Applet
        implements Runnable {
 
    Font theFont = new Font("TimesRoman",Font.BOLD,24);
    Date theDate;
    Thread runner;

      //iniciamos el reloj para mostrar su hora

    public void start() {
       if (runner == null) {
           runner = new Thread(this);
           runner.start();
       }
    }
   
      //paramos el reloj despues de mostrar la hora   

    public void stop() {
       if (runner != null) {
           runner = null;
       }
    }

      //lo que de hace el applet:

    public void run() {
      Thread thisThread = Thread.currentThread();
      while (runner == thisThread) {
         repaint();
         try {
               Thread.sleep(1000);
         } catch (InterruptedException e) {}
      }
    }

    public void paint(Graphics screen) {
       theDate = new Date();
       screen.setFont(theFont);
       screen.drawString("" + theDate.toString(), 10, 50);
    }

}