Append text in JTextArea

Question

greetings.. i'm having the following code:
public class GUI extends JPanel implements ActionListener
  JTextArea theText;
  public GUI()
     // and so on and so forth that initializes the textarea
      displayToTextArea("call from inside");
public void displayToTextArea(String message)
  theText.append(message + "\n");
}and at another class:
GUI theGUI = new GUI;
theGUI.displayToConsole("call from outside");but after running, the only text appended is the "call from inside", the "call from outside" is not appended into the textarea.
any clues?
please advice.
thanks. ^_^

Answer 1

I think you need to show how you are using it because if I use it from a simple test harness and add what must be missing (the creation of 'theText' and the action listener method) it works OK for me.
Make sure you have defined the number of lines for the JTextArea.
import javax.swing.*;
import java.awt.event.*;
public class Test20050115
    static class GUI extends JPanel implements ActionListener
        JTextArea theText = new JTextArea(4, 50); // 4 lines
        public GUI()
            add(theText);
            // and so on and so forth that initializes the textarea
            displayToTextArea("call from inside");
        public void displayToTextArea(String message)
            theText.append(message + "\n");
        public void actionPerformed(java.awt.event.ActionEvent actionEvent)
    public static void main(String[] args)
        JFrame frame = new JFrame("Test");
        GUI gui = new GUI();
        gui.displayToTextArea("call from outside");
        frame.getContentPane().add(gui);
        frame.pack();
        frame.setVisible(true);    
}