ScrollPanel & ScrollBar

Question

Ok, im having a little difficulty setting up a scroll bar on a text area, tried to use the tutorial (but that is confusing me even more!).
I have a JPanel resultPanel, JTextArea result which is added to the resultPanel so my results are visible. All i want is a vertical scrollbar so i can see all the results as they pour in. When i implement the scrollPane and scrollbar classes, the scrollbar doesnt appear and the textarea messes up.
Anyone got a simple solution, to this simple prob.
Any help greatfully appreciated.
Thanks.

Answer 1

Hope this will help.
import javax.swing.*;
import java.awt.*;
public class TestApp extends JFrame{
        JTextArea textDisplay=new JTextArea(" HI !");  
        JScrollPane scrollDisplay=new JScrollPane();
        JPanel displayPanel=new JPanel();
        TestApp(){
            init();
        private void init(){
            setSize(400,300) ;
            setResizable(false);
            scrollDisplay.setPreferredSize(new Dimension(200,150));
            scrollDisplay.getViewport().add(textDisplay);           
            displayPanel.add(scrollDisplay);
            getContentPane().add(displayPanel);           
            show() ;
    public static void main(String args[]) {
        new TestApp();
}