How could I allow only unique strings in a JList?

Question

I have a JList that holds a bunch of strings . I would like it to act like a Set , so that it will only hold unique values . Is there any way to achieve this without checking that a new string doesn't already exist there ?

To what purpose? Is it necessary to iterate in the order items were added? Is it necessary to randomly access the items? Why does a set not work for you? — Lawrence Dol, Nov 24 '08 at 00:48

score 5 · Accepted Answer · answered Nov 23 '08 at 15:05

5

take a look at the docs: 1.4.2 | Java 6

You can set your own ListModel via JList#setModel(ListModel) which might be backed by e.g. a HashSet instead of the Vector which is used by default.

See also ListModel and AbstractListModel

answered Nov 23 '08 at 15:05

Argelbargel

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LinkedHashSet would make more sense, but it'd still be an awkward O(n^2) operation to, say, repaint the widget. – Tom Hawtin - tackline Nov 26 '08 at 13:26

How could I allow only unique strings in a JList?

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