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Listbox (JList)


A JList shows a list of a set of items. In order to include a scrollbar, a JList must be placed inside of a JScrollPane. The user can select either one or multiple items depending on the 'Selection Mode'. The Visible rows entry field indicates the number of rows that are displayed when a JList is placed inside of a JScrollPane. The 'Prototype Value for Sizing' is a text string whose display width determines the preferred width of the JList.

The JList can be used in two ways. The first is by specifying a static set of text entries in the 'JList items' area (each one on a line). The second, and more powerful, is to use a ListModel. A ListModel lets the user fully describe the contents of the JList in an abstract manner to create dynamic contents. See the JDK API reference and documentation for further details.

A List will generate an ItemEvent whenever the user chooses an item.

A List will generate an ActionEvent whenever the user presses the 'Enter' key while the Listbox has the focus.


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