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Java 2 Platform SE v1.3.1: Interface ItemSelectable - JDK 5 Documentation v1.3.1, Java 2 SDK 英文文档

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java.awt
Interface ItemSelectable

All Known Subinterfaces:

ButtonModel

All Known Implementing Classes:

Checkbox, Choice, List, CheckboxMenuItem, AbstractButton, JComboBox

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public interface ItemSelectable

The interface for objects which contain a set of items for which zero or more can be selected.

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Method Summary
void	addItemListener(ItemListener l)           Add a listener to recieve item events when the state of an item changes.
Object[]	getSelectedObjects()           Returns the selected items or null if no items are selected.
void	removeItemListener(ItemListener l)           Removes an item listener.

 

Method Detail

getSelectedObjects

public Object[] getSelectedObjects()

Returns the selected items or null if no items are selected.

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addItemListener

public void addItemListener(ItemListener l)

Add a listener to recieve item events when the state of an item changes. If l is null, no exception is thrown and no action is performed.

Parameters:

l - the listener to recieve events

See Also:

ItemEvent

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removeItemListener

public void removeItemListener(ItemListener l)

Removes an item listener. If l is null, no exception is thrown and no action is performed.

Parameters:

l - the listener being removed

See Also:

ItemEvent

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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