src/share/classes/java/awt/event/ItemListener.java

Print this page




  23  * questions.
  24  */
  25 
  26 package java.awt.event;
  27 
  28 import java.util.EventListener;
  29 
  30 /**
  31  * The listener interface for receiving item events.
  32  * The class that is interested in processing an item event
  33  * implements this interface. The object created with that
  34  * class is then registered with a component using the
  35  * component's <code>addItemListener</code> method. When an
  36  * item-selection event occurs, the listener object's
  37  * <code>itemStateChanged</code> method is invoked.
  38  *
  39  * @author Amy Fowler
  40  *
  41  * @see java.awt.ItemSelectable
  42  * @see ItemEvent
  43  * @see <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/itemlistener.html">Tutorial: Writing an Item Listener</a>
  44  *
  45  * @since 1.1
  46  */
  47 public interface ItemListener extends EventListener {
  48 
  49     /**
  50      * Invoked when an item has been selected or deselected by the user.
  51      * The code written for this method performs the operations
  52      * that need to occur when an item is selected (or deselected).
  53      */
  54     void itemStateChanged(ItemEvent e);
  55 
  56 }


  23  * questions.
  24  */
  25 
  26 package java.awt.event;
  27 
  28 import java.util.EventListener;
  29 
  30 /**
  31  * The listener interface for receiving item events.
  32  * The class that is interested in processing an item event
  33  * implements this interface. The object created with that
  34  * class is then registered with a component using the
  35  * component's <code>addItemListener</code> method. When an
  36  * item-selection event occurs, the listener object's
  37  * <code>itemStateChanged</code> method is invoked.
  38  *
  39  * @author Amy Fowler
  40  *
  41  * @see java.awt.ItemSelectable
  42  * @see ItemEvent
  43  * @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/itemlistener.html">Tutorial: Writing an Item Listener</a>
  44  *
  45  * @since 1.1
  46  */
  47 public interface ItemListener extends EventListener {
  48 
  49     /**
  50      * Invoked when an item has been selected or deselected by the user.
  51      * The code written for this method performs the operations
  52      * that need to occur when an item is selected (or deselected).
  53      */
  54     void itemStateChanged(ItemEvent e);
  55 
  56 }