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

public class StringTest2 extends JPanel{

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

    StringTest2 app = new StringTest2();
    frame.getContentPane().add(app);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setBounds(10, 10, 300, 200);
    frame.setTitle("タイトル");
    frame.setVisible(true);
  }

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

    g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, 
                        RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

    Font font1 = new Font("Arial", Font.PLAIN, 16);
    g2.setFont(font1);

    g2.drawString("Hello Java2D", 30, 40);

    Font font2 = new Font("ＭＳ 明朝", Font.BOLD, 32);
    g2.setFont(font2);

    g2.drawString("日本語文字列", 30, 120);
  }
}