import java.applet.*;
import java.awt.*;
public class Ruum3 extends Applet implements Runnable{
  double nurk=0;
  double nurk2=2*Math.PI/10;
  double nurgasamm=0.05;
  double raadius=50;
  int keskx=100;
  int kesky=100;
  public Ruum3(){new Thread(this).start();}
  void liigu(){
    nurk=nurk+nurgasamm;
    nurk2=nurk2+nurgasamm;
  }
  void joonista(Graphics g){
     int x=(int)(raadius*Math.cos(nurk));
     int z=(int)(raadius*Math.sin(nurk));
     int y=0;
     int x2=(int)(raadius*Math.cos(nurk2));
     int z2=(int)(raadius*Math.sin(nurk2));
     int y2=0;
     g.fillOval(ex(x)-5, ey(y)-5, 10, 10);
     g.fillOval(ex(x2)-5, ey(y2)-5, 10, 10);
  }
  int ex(double x){return keskx+(int)x;}
  int ey(double y){return kesky-(int)y;}
  public void run(){
    while(true){
      try{
        Graphics g=getGraphics();
        liigu();
        g.setColor(Color.black);
        joonista(g);
        Thread.sleep(100);
        g.setColor(getBackground());
        joonista(g);
      }catch(Exception e){}
    }
  }
  public static void main(String arg[]){
    Frame f=new Frame();
    f.add(new Ruum3());
    f.setSize(200, 200);
    f.setVisible(true);
  }
}