You need to add an ItemListener, not an ActionListener to obtain combo box selection events. You'll need to implement an itemStateChanged(ItemEvent e) method in which you can retrieve the selected combo box value via e.getItem(), and then populate your text area with that.
I agree. Here's the link: http://ej-technologies/jprofiler - if it wasn't for jprofiler, we would need to
run our stuff on 16 servers instead of 3.