< prev index next >
src/java.desktop/share/classes/java/awt/event/FocusAdapter.java
Print this page
*** 28,48 ****
/**
* An abstract adapter class for receiving keyboard focus events.
* The methods in this class are empty. This class exists as
* convenience for creating listener objects.
* <P>
! * Extend this class to create a <code>FocusEvent</code> listener
* and override the methods for the events of interest. (If you implement the
! * <code>FocusListener</code> interface, you have to define all of
* the methods in it. This abstract class defines null methods for them
* all, so you can only have to define methods for events you care about.)
* <P>
* Create a listener object using the extended class and then register it with
! * a component using the component's <code>addFocusListener</code>
* method. When the component gains or loses the keyboard focus,
* the relevant method in the listener object is invoked,
! * and the <code>FocusEvent</code> is passed to it.
*
* @see FocusEvent
* @see FocusListener
* @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/focuslistener.html">Tutorial: Writing a Focus Listener</a>
*
--- 28,48 ----
/**
* An abstract adapter class for receiving keyboard focus events.
* The methods in this class are empty. This class exists as
* convenience for creating listener objects.
* <P>
! * Extend this class to create a {@code FocusEvent} listener
* and override the methods for the events of interest. (If you implement the
! * {@code FocusListener} interface, you have to define all of
* the methods in it. This abstract class defines null methods for them
* all, so you can only have to define methods for events you care about.)
* <P>
* Create a listener object using the extended class and then register it with
! * a component using the component's {@code addFocusListener}
* method. When the component gains or loses the keyboard focus,
* the relevant method in the listener object is invoked,
! * and the {@code FocusEvent} is passed to it.
*
* @see FocusEvent
* @see FocusListener
* @see <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/focuslistener.html">Tutorial: Writing a Focus Listener</a>
*
< prev index next >