import java.applet.*;
import java.awt.*;
import java.util.Random;

public class False extends Applet implements Runnable {

   	int width, height;
   	int i = 0;
   	Thread t = null;
   	boolean threadSuspended;

	int x1 = retRandNum();
   	int y1 = retRandNum();
   	
   	public void init() {
	  	width = getSize().width;
      	height = getSize().height;
      	setBackground(Color.black);
   	}

   	public void destroy() { }

   	public void start() {
      	if (t == null) {
        	t = new Thread(this);
         	threadSuspended = false;
         	t.start();
      	} else {
         	if (threadSuspended) {
            	threadSuspended = false;
            	synchronized(this) {
				notify();
            }
         }
      }
   }

   public void stop() {
      threadSuspended = true;
   }

   public void run() {
      try {
         while (true) {
            i++;
            if (i == 10) {
               i = 0;
            }

            if (threadSuspended) {
               synchronized(this) {
                  while (threadSuspended) {
                     wait();
                  }
               }
            }
            
            repaint();
            t.sleep(10);
         }
      }
      catch (InterruptedException e) { }
   }

   public void paint(Graphics g) {   	
	g.setColor(Color.blue);
	g.fillOval(width-x1, height-y1, 10, 10);
	
	if(x1 == width) {
		x1++;
		y1++;
	} else {
		x1--;
   		y1--;
	}
	
   }
   
	public int retRandNum() {
		Random newRand = new Random();
		return newRand.nextInt(300);
	}
}