import java.awt.*;

public class example3 extends BufferedApplet
{
   int w = 0, h = 0;
   Font font = new Font("Helvetica", Font.BOLD, 48);

   double time0;

   int mx = 0, my = 0;

   public void render(Graphics g) {
      if (w == 0) {
	 w = bounds().width;
	 h = bounds().height;

         mx = w/2;
         my = h/2;

         time0 = System.currentTimeMillis() / 1000.0;
      }


      double time = System.currentTimeMillis() / 1000.0;
      double elapsed = time - time0;

      g.setColor(Color.white);
      g.fillRect(0, 0, w, h);

      g.setColor(Color.red);
      g.fillRect(mx - w/6, my - h/6, w/3, h/3);


      int j = (int)(100 * Math.sin(elapsed * (2 * Math.PI)));
      int k = (int)( 20 * Math.cos(elapsed * (2 * Math.PI)));

      g.setColor(Color.black);
      g.fillOval(mx - w/6, my - h/6 + j, w/3, w/3 - k);

      animating = true;
   }

   public boolean mouseMove(Event e, int x, int y) {
      mx = x;
      my = y;
      damage = true;
      return true;
   }
}