import java.awt.*;
public class Kolco extends Frame implements Runnable{
 Odno[] kolca;
 public Kolco(){
    kolca=new Odno[5];
    for(int i=0; i<kolca.length; i++)
        kolca[i]=new Odno();
       setSize(200, 200);
       setVisible(true);

       new Thread(this).start();
   }
       public void joonista(){
           Image pilt=createImage(200, 200);
           Graphics piltg=pilt.getGraphics();
             for(int i=0; i<kolca.length; i++){
                piltg.setColor(Color.blue);
                piltg.fillOval(kolca[i].x-(int)(kolca[i].dy/2),kolca[i].y-(int)(kolca[i].dy/2),kolca[i].dy,kolca[i].dy);
                piltg.setColor(Color.white);
                piltg.fillOval(kolca[i].x-(int)(kolca[i].dx/2),kolca[i].y-(int)(kolca[i].dx/2),kolca[i].dx,kolca[i].dx); 
              
               }
                  this.getGraphics().drawImage(pilt, 0, 0, this); }
           public void run(){
                  
                        joonista();
                                                
               }

        public static void main(String argumendid[]){
          new Kolco();
          }
}

        class Odno extends Thread{
             int x=100, y=200, dy, dx;
        public Odno(){
                    start();
                    }
             public int x(){
                   return (int)x;  }
             public int y(){
                   return (int)y;  }
             public int dy(){
                   return (int)dy; }
             public int dx(){
                   return (int)dx; }
             public void run(){
                   setPriority(Thread.NORM_PRIORITY-2);
                          x=(int)(150*Math.random()+30);
                          y=(int)(150*Math.random()+30);
                          dy=(int)(30*Math.random()+20);
                          dx=dy-10;
                          
                          yield();

                          
                      
              }}