New to Java - Combo Box

Question

I have a Application using swing, I have a combo box with a collection of flex codes. The problem that I'm having is that system titles can have more than one flex codes. What I'm trying to do if a system title have more than one flex codes I like for the system title to be list twice with the flex code.
For example:
          SYSTEM TITLE      FLEX CODE
First Row     9MH16R12     9001
Second Row     9MH16R12     9002
The flex code are set up in combo box to allowed the user to change the flex code.
Here is some of the code that I have written:
public class FlexCellEditor extends DefaultCellEditor implements TableCellEditor
public FlexCellEditor()
super(new JComboBox());
public Component getTableCellEditorComponent(JTable aTable, Object obj, boolean flag, int aRow, int aColumn)
JComboBox vComboBox = (JComboBox) super.getComponent();
SystemTitle vSystemTitle = aRow >= 0 ? model.getSystemTitle(aRow) : null;
Collection<FlexCode> vSelected = vSystemTitle != null ? vSystemTitle.getFlexCodes() : null;
DefaultComboBoxModel vComboMode = (DefaultComboBoxModel) vComboBox.getModel();
vComboMode.removeAllElements();
int vSelectedIndex = -1;
if (vSystemTitle != null)
for (FlexCode vFlexCode : vSystemTitle.getFlexCodes())
vComboMode.addElement(vFlexCode);
if (vFlexCode.equals(vSelected))
vSelectedIndex = vComboMode.getSize() - 1;
vComboBox.setSelectedIndex(vSelectedIndex);
return vComboBox;
}

Answer 1

Just to provide a completely different approach:
Instead of converting to an object array, then passing that into the combo box, you can take advantage of the MVC nature of swing (I'm assuming you are using a JComboBox):
public class ArrayListComboBoxModel extends AbstractListModel{
  ArrayList myList;
  public ArrayListComboBoxModel(ArrayList l)
    myList = l;
  public Object getElementAt(int index) {
      return myList.get(index);
  public int getSize() {
      return myList.size();
}Then create your JComboBox as follows:
JComboBox box = new JComboBox(new ArrayListComboBoxModel(anArrayList));Nifty!
- K