extending an extended class

[samifox]

Hi
I have to use a scrolled list several times among my program so I create a class named ScrolledList that extends Jpanel and an inner class that extends ScrolledLIst.
The problem shows up when I�m trying to add an item inside the inner class, the code pass compilation, it even enter the addItem() but its dont add item
What I�m doing wrong(code example please)?

public class ScrolledList extends JPanel{
  DefaultListModel dlm = new DefaultListModel();
  JList list = new JList();
  JScrollPane js = new JScrollPane(list);
  ScrolledList(){
    setLayout(new BorderLayout());
    add(js,BorderLayout.CENTER);
  }
}

here is the class i use whenever i need this scrolled list:

public class innerClass extends ScrolledList{
  public void addItem(String item){
    System.out.println("addItem invoked...");
    this.dlm.addElement(item);
  }
  public static void main(String[] args) {
        JFrame frame = new JFrame("InnerClass");
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {System.exit(0);}
        });
        frame.getContentPane().add(new innerClass(),
                                   BorderLayout.CENTER);
        frame.setSize(400, 125);
        frame.setVisible(true);
        innerClass ic = new innerClass();
        ic.addItem("Shay");
  }
}

what im doing wrong(code example please)?
Thanks
[This message has been edited by Shay Gaghe (edited October 05, 2001).]

[Cindy Glass]

samifox (aka Shay Gaghe?)
Please do not use this ID any more. It does not fit the at "JavaRanch Naming Policy"
Two comments on your question. You have a DefaultListModel that you are adding to, but you never hook it up to your JList.
You could try repainting.

[Colin Kenworthy]

Shay,
You need to amend your code as follows:
in ScrolledList make your JList like this
JList list = new JList(dlm);
(otherwise how does the JList know what to display)
and in innerClass add your innerClass object like this
innerClass ic = new innerClass();
ic.addItem("Shay");
frame.getContentPane().add(ic,
BorderLayout.CENTER);
(your way adds 'Shay' to a different innerClass object to the one that is added to the window!)
Hope this helps,
Colin.