JList and ArrayList update

Question

I would like to have example on how to update a JList when I add or remove elements from a ArrayList.

The ArrayList is part of Model class. The Model class is passe

Answer 1

You need to use a ListModel to control adding and removing items from a JList. The tutorial is very useful: http://download.oracle.com/javase/tutorial/uiswing/components/list.html

Here is some example code from the tutorial:

listModel = new DefaultListModel();
listModel.addElement("Jane Doe");

listModel.insertElementAt(employeeName.getText(), index);    

int index = list.getSelectedIndex();
listModel.remove(index);

If you have an arraylist you could build your own List Model around it.