import javax.swing.*;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.*;
import java.awt.RenderingHints;

public class Graphics2DTest3 extends JPanel{

  public static void main(String[] args){
    JFrame frame = new JFrame();

    Graphics2DTest3 app = new Graphics2DTest3();
    frame.getContentPane().add(app);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setBounds(10, 10, 300, 200);
    frame.setTitle("ƒ^ƒCƒgƒ‹");
    frame.setVisible(true);
  }

  public void paintComponent(Graphics g){
    Graphics2D g2 = (Graphics2D)g;

    g2.draw(new Line2D.Double(20, 20, 110, 140));
    g2.draw(new Arc2D.Double(70, 60, 100, 100, 90, 135, Arc2D.CHORD));

    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, 
                        RenderingHints.VALUE_ANTIALIAS_ON);

    g2.draw(new Line2D.Double(150, 20, 240, 140));
    g2.draw(new Arc2D.Double(200, 60, 100, 100, 90, 135, Arc2D.CHORD));
  }
}