Java Applet ile yapılmış dönen saat akrebi

package kodsozluk;
import java.applet.Applet;
import java.awt.Graphics;
public class dönensaat extends Applet implements Runnable {
    int r=150;
 double x=(int)20+r/2,y=20+r/2,x1=20+r/2,y1=20+r/2;
    public void init() {
       Thread t=new Thread(this);
       t.start();
    }
    public void paint(Graphics g) {
    
        g.drawLine((int)x, (int) y,(int)(x1+x),(int)(y1+y));
    }
    public void run() {int i=0;
        try {
            while(true){
                x1=r/2*(Math.cos(i*0.01));
                y1=r/2*(Math.sin(i*0.01));
                i++;
                Thread.sleep(10);
                repaint();
        }
        } catch (Exception e) {
        }
    }
}

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