A semantic event which indicates that an item was selected or deselected.
This high-level event is generated by an ItemSelectable object (such as a
List) when an item is selected or deselected by the user.
The event is passed to every ItemListener object which
registered to receive such events using the component's
addItemListener method.
The object that implements the ItemListener interface gets
this ItemEvent when the event occurs. The listener is
spared the details of processing individual mouse movements and mouse
clicks, and can instead process a "meaningful" (semantic) event like
"item selected" or "item deselected".
An unspecified behavior will be caused if the id parameter
of any particular ItemEvent instance is not
in the range from ITEM_FIRST to ITEM_LAST.
The stateChange of any ItemEvent instance takes one of the following
values:
ItemEvent.SELECTED
ItemEvent.DESELECTED
extends
java.awt.ItemSelectable, ItemListener, Tutorial: Writing an Item Listener