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ItemSelectable (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档


Java™ Platform
Standard Ed. 6

java.awt
Interface ItemSelectable

All Known Subinterfaces:
ButtonModel
All Known Implementing Classes:
AbstractButton, BasicArrowButton, Checkbox, CheckboxMenuItem, Choice, DefaultButtonModel, JButton, JCheckBox, JCheckBoxMenuItem, JComboBox, JMenu, JMenuItem, JRadioButton, JRadioButtonMenuItem, JToggleButton, JToggleButton.ToggleButtonModel, List, MetalComboBoxButton, MetalScrollButton

public interface ItemSelectable

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


Method Summary
 void addItemListener(ItemListener l)
          Adds a listener to receive item events when the state of an item is changed by the user.
 Object[] getSelectedObjects()
          Returns the selected items or null if no items are selected.
 void removeItemListener(ItemListener l)
          Removes an item listener.
 

Method Detail

getSelectedObjects

Object[] getSelectedObjects()
Returns the selected items or null if no items are selected.


addItemListener

void addItemListener(ItemListener l)
Adds a listener to receive item events when the state of an item is changed by the user. Item events are not sent when an item's state is set programmatically. If l is null, no exception is thrown and no action is performed.

Parameters:
l - the listener to receive events
See Also:
ItemEvent

removeItemListener

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

Java™ Platform
Standard Ed. 6

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

Copyright 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.