import java.util.*;
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;

public class Clock01 {
	private JFrame frame = new JFrame("•`‰æ");
	private JPanel pane = (JPanel)frame.getContentPane();
	private Canvas canvas = new Canvas(){
		@Override
		public void paint(Graphics g){
			Graphics2D g2 = (Graphics2D)g;
			AffineTransform af = new AffineTransform();
			for(int i = 0; i < 12; i++){
				af.setToRotation(Math.PI / 6 * i, 200, 200);
				g2.setTransform(af);
				g2.fillOval(198, 0, 4, 20);
			}
		}
	};
	
	public Clock01(){
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		canvas.setBackground(Color.LIGHT_GRAY);
		canvas.setSize(400, 400);
		pane.add(canvas);
		frame.pack();
		frame.setVisible(true);
	}
	
	public static void main(String[] args) {
		new Clock01();
	}
}