Hier ist mein Quellcode: public class Animation { Star stern; double x; double y;

public Animation()
{stern = new Star();
 stern.makeVisible();
 double x;
 double y;

 for(double i = 0; i < 90; i++)
 {
  x=100*Math.cos(int i);
  y=100*Math.sin(int i);
  stern.changePosition(x,y);
 }
}

}