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

public class Stroke01 {
	private JFrame frame = new JFrame("���̑���");
	private JPanel pane = (JPanel)frame.getContentPane();
	private int w = 400, h = 400; 
	private Canvas canvas = new Canvas(){
		@Override
		public void update(Graphics g){
			paint(g);
		}
		@Override
		public void paint(Graphics g){
			Rectangle rec = g.getClipBounds();
			w = rec.width;
			h = rec.height;
			Image img = createImage(w, h);
			Graphics2D g2 = (Graphics2D)img.getGraphics();
			Ellipse2D ell1 = new Ellipse2D.Double(50, 100, 200, 200);
			Ellipse2D ell2 = new Ellipse2D.Double(150, 100, 200, 200);
			g2.setColor(Color.BLUE);
			g2.setStroke(new BasicStroke(5));
			g2.draw(ell1);
			g2.setStroke(new BasicStroke(15));
			g2.draw(ell2);
			g.drawImage(img, 0, 0, this);
		}
	};
	
	public Stroke01(){
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		canvas.setBackground(Color.WHITE);
		canvas.setSize(w, h);
		pane.add(canvas);
		frame.pack();
		frame.setVisible(true);
	}
	
	public static void main(String[] args) {
		new Stroke01();
	}
}