import java.applet.*;
import java.awt.event.*;
import java.awt.*;

public class Ringid extends Applet implements AdjustmentListener { 

  public void init(){
    setLayout(new BorderLayout());
    add(sb, BorderLayout.NORTH);
    sb.addAdjustmentListener(this);
  }

  public static void main(String argumendid[]){
     Frame f=new Frame("Ringid, nagu ise tahad!");
     f.setSize(400, 400);
     Applet ap=new Ringid();
     ap.init();
     f.add(ap);
     f.setVisible(true);
  }

  Scrollbar sb = new Scrollbar(Scrollbar.HORIZONTAL, 1, 10, 0, 110);
  int arv = 1, x, y;

  double nurk;
  double kraad=Math.PI/180;
  int raadius = 100;

  public void paint(Graphics g) {

    if(arv>0) {
      nurk = (360.0/arv)*kraad;

      g.setColor(Color.white);
      g.fillRect(0, 0, getSize().width, getSize().height);
      g.setColor(Color.black);

      for(int i=1; i<=arv; i++) {
        x = (int)(raadius*Math.cos(nurk*i))+200;
        y = (int)(raadius*Math.sin(nurk*i))+200;
        g.fillOval(x, y, 10, 10);
      }
    }
    g.drawString("Hetkel on nurkade arv: "+arv, 20, 50);
  }

  public void adjustmentValueChanged(AdjustmentEvent e){
    arv = (int)sb.getValue();
    repaint();
  }

}