Sizing a jlist within a jpanel

Question

Hi,
I'm writing a jpanel tjhat contains a jlist object at its center. Now, when I place the jpanel within a JFrame the panel grows to eat all the available space (I can see this thanks to the border of the panel), while the JList remains at a very small size regarding the jpanel. I'd like to have the jlist to resize itself to occupy all the
jpanel size. The following is the code that shows it. Any idea about how to achieve this?
Thanks,
Luca
public class ListPanel extends JPanel{
    protected JList myList;
public AgletListPanel(){
        super();
        this.setLayout(new FlowLayout(FlowLayout.CENTER));
        this.listModel = new DefaultListModel();
        this.myList = new JList(this.listModel);
        this.myList.setBackground(Color.WHITE);
        this.myist.setForeground(Color.BLUE);
        this.myList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
        this.myList.setPreferredSize(getPreferredSize());
        this.add(new JScrollPane(this.myList));
        TitledBorder border = new TitledBorder("List"));
        border.setTitleColor(Color.BLUE);
        border.setTitleJustification(TitledBorder.CENTER);
        this.setBorder(border);
        this.setVisible(true);
    }

Answer 1

Thanks, using the borderlayout the panel now shows fine to me. However I removed the setPreferredSize line in order not ot have the jlist to use scrollbars even if empty.
By the way, can you explain why the FlowLayout did not work and the border layout did it?
Thanks.