import java.applet.*;
import java.awt.*;

public class Threads2 extends Applet implements Runnable {

   int width, height;
   int i = 0;
   Thread t;

   // Executed when the applet is first created.
   public void init() {
      System.out.println("init(): begin");
      width = getSize().width;
      height = getSize().height;
      setBackground( Color.black );

      System.out.println("init(): creating thread");
      t = new Thread( this );
      System.out.println("init(): starting thread");
      t.start();
      System.out.println("init(): end");
   }

   // Executed when the applet is destroyed.
   public void destroy() {
      System.out.println("destroy()");
   }

   // Executed within the thread that this applet created.
   public void run() {
      System.out.println("run(): begin");
      try {
         while (true) {
            System.out.println("run(): awake");

            // Here's where the thread does some work
            ++i;
            if ( i == 10 ) {
               i = 0;
            }
            showStatus( "i is " + i );

            System.out.println("run(): requesting repaint");
            repaint();
            System.out.println("run(): sleeping");
            t.sleep( 1000 );  // interval given in milliseconds
         }
      }
      catch (InterruptedException e) { }
      System.out.println("run(): end");
   }

   // Executed whenever the applet is asked to redraw itself.
   public void paint( Graphics g ) {
      System.out.println("paint()");
      g.setColor( Color.green );
      g.drawLine( width, height, i * width / 10, 0 );
   }
}