Append some text to JTextArea in Java

import java.awt.Font;
/*from   ww  w.  j av  a 2s  . c om*/
import javax.swing.JFrame;
import javax.swing.JTextArea;

public class Main extends JFrame {

  public Main() {
    JTextArea textArea = new JTextArea("Initial Text");
    textArea.setFont(new Font("LucidaSans", Font.PLAIN, 40));
    add(textArea);    

    textArea.append("java2s.com");
  }

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

    frame.pack();
    frame.setVisible(true);
  }
}