ItemListener (Java SE 15 & JDK 15)
Description: declaration: module: java.desktop, package: java.awt.event, interface: ItemListener
Keywords: java.awt.event.ItemListener interface

Module java.desktop
Package 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

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

- ## Method Summary

  Modifier and Type | Method | Description
  --- | --- | ---
  `void` | `itemStateChanged​(ItemEvent e)` | Invoked when an item has been selected or deselected by the user.

- ## Method Details

  - ### 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).
    Parameters:
      `e` - the event to be processed