repopulating JLists?

[jordandap]

Hello I am making a program that auto clears and then repopulates a JList depending on what you have done.

I have managed to clear all the entries in the JList but can't seem to add any

private static ConstantsS[] = {};
private static VariablesS[] = {};
private void VarConUpdate()
	{
		ConstantsList.removeAll();
		VariablesList.removeAll();
                //what i want to do is put all of the VariableS[] in VariablesList
                //and all ConstantsS[] ConstantsList
                //how would I achieve this?
	}
public GUIOutput()
{
               JScrollPane ScrollPaneConstants = new JScrollPane();
		ScrollPaneConstants.setBounds(636, 30, 126, 320);
		getContentPane().add(ScrollPaneConstants);

		ConstantsList = new JList();
		ScrollPaneConstants.setViewportView(ConstantsList);
		ConstantsList.setVisibleRowCount(5);
}

[alykins]

foreach(String s in VariableS)
{
  VariablesList.Add(s);
}

Should be something very close to that... could also do a for loop...

for(int i = 0; i < VariableS.Length; i++)
{
  VariablesList.Add(VariableS[i]);
}

[jordandap]

thanks what i did in the first place worked but it was due to another problem in my program not my loop.

[Fou-Lu]

Its not quite as easy in Java as it is in C# to add to a jlist. If you want to actually add an item to a JList, you need to add it to the list's model. That's a simple matter of retrieving the list model, and casting it:

PHP Code:

((DefaultListModel)mylist.getModel()).addElement(anObject); 


Should do it.