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

public class StringTest1 extends JPanel{

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

    StringTest1 app = new StringTest1();
    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.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, 
                        RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

    g2.drawString("Hello Java2D", 100, 100);

//    g2.draw(new Line2D.Double(100.0d, 100.0d, 200.0d, 100.0d));
  }
}