import java.awt.*;
public class raam2{
   public static void main(String argumendid[]){
      new Raam2ise () ;
   }
}
 class Raam2ise extends Frame implements Runnable{
   public  Raam2ise (){
      setSize(200, 100);
      setVisible(true);
      new Thread(this).start();
   }
   public void run(){
     double algnurk=0;
     boolean veel=true;
     while(veel){
       Graphics g=this.getGraphics();      
       g.setColor(Color.black);
       joonista(g, algnurk);
       try{Thread.sleep(100);}catch(Exception e){}
       algnurk=algnurk+0.05;
     }
   }
   public void joonista(Graphics ekraan, double algnurk){
     Image pilt=createImage(getWidth(), getHeight());
     Graphics2D g=(Graphics2D)pilt.getGraphics();
     double kiirus=15;
     g.setPaint(
       new GradientPaint((int)(kiirus*algnurk),(int)(kiirus*algnurk) , Color.red,
                (int)(kiirus*algnurk)+20,(int)(kiirus*algnurk)+20, Color.yellow, true)
     );
     g.fillRect(0, 0, getWidth(), getHeight());
     g.setColor(Color.black);
     g.setStroke(
       new BasicStroke(5)
     );
    double nurk=algnurk;
    double raadius=50;
    int keskx=getWidth()/2;
    int kesky=getHeight()/2;
    int vanax=keskx+(int)(raadius*Math.cos(nurk));
    int vanay=kesky+(int)(raadius*Math.sin(nurk));
    int uusx, uusy;
    for(int i=0; i<8; i++){
      nurk=nurk+Math.PI/4;
      uusx=keskx+(int)(raadius*Math.cos(nurk));
      uusy=kesky+(int)(raadius*Math.sin(nurk));
      g.drawLine(vanax, vanay, uusx, uusy);
      vanax=uusx; vanay=uusy;
    }
    ekraan.drawImage(pilt, 0, 0, this);
   }
}