import java.applet.Applet;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class paike extends Applet implements ActionListener{
  TextField kiiri=new TextField(5);
  Button nupp=new Button("  Joonista  ");
  public void init(){
    add(kiiri);
    add(nupp);
    nupp.addActionListener(this);
    kiiri.addActionListener(this);
  }
  public void actionPerformed(ActionEvent e){
    int nr=Integer.parseInt(kiiri.getText().trim());
    Graphics g=this.getGraphics();
    g.setColor(Color.white);
    g.fillRect(0, 0, getSize().width, getSize().height);
    g.setColor(Color.black);
    g.drawOval(100, 150, 40, 40);
    g.setColor(Color.yellow);
    g.fillOval(100, 150, 40, 40);
    int r = 80;
    int x = 0;
    int y = r;
    double nurgavahe = ( 2*Math.PI ) / nr;
    double nurk=0;
    for (int k=0; k<=nr; k++){
        g.setColor(Color.black);
	g.drawLine(120, 170, 120-x, 170+y);
	x = (int)Math.round(Math.sin(nurk)*r);
	y = (int)Math.round(Math.cos(nurk)*r);
        nurk = nurk+nurgavahe;
    }
  }
}