ItemListener (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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Java^TM 2 Platform
Standard Ed. 5.0

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java.awt.event
Interface ItemListener

All Superinterfaces:: EventListener

All Known Implementing Classes:: AWTEventMulticaster, BasicComboBoxUI.ItemHandler, BasicComboPopup.ItemHandler, Checkbox.AccessibleAWTCheckbox, DefaultCellEditor.EditorDelegate, JCheckBox.AccessibleJCheckBox, JRadioButton.AccessibleJRadioButton, JToggleButton.AccessibleJToggleButton, List.AccessibleAWTList

public interface ItemListener
extends EventListener
extends EventListener

The listener interface for receiving item events. The class that is interested in processing an item event implements this interface. The object created with that class is then registered with a component using the component's addItemListener method. When an item-selection event occurs, the listener object's itemStateChanged method is invoked.

Since:: 1.1
See Also:: ItemSelectable, ItemEvent, Tutorial: Writing an Item Listener, Reference: The Java Class Libraries (update file)

Method Summary

void itemStateChanged(ItemEvent e)
Invoked when an item has been selected or deselected by the user.

Method Summary
`void`	`itemStateChanged(ItemEvent e)` Invoked when an item has been selected or deselected by the user.

Method Detail

itemStateChanged

void itemStateChanged(ItemEvent e)

Invoked when an item has been selected or deselected by the user. The code written for this method performs the operations that need to occur when an item is selected (or deselected).