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src/java.desktop/share/classes/java/awt/event/KeyListener.java

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  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.awt.event;
  27 
  28 import java.util.EventListener;
  29 
  30 /**
  31  * The listener interface for receiving keyboard events (keystrokes).
  32  * The class that is interested in processing a keyboard event
  33  * either implements this interface (and all the methods it
  34  * contains) or extends the abstract <code>KeyAdapter</code> class
  35  * (overriding only the methods of interest).
  36  * <P>
  37  * The listener object created from that class is then registered with a
  38  * component using the component's <code>addKeyListener</code>
  39  * method. A keyboard event is generated when a key is pressed, released,
  40  * or typed. The relevant method in the listener
  41  * object is then invoked, and the <code>KeyEvent</code> is passed to it.
  42  *
  43  * @author Carl Quinn
  44  *
  45  * @see KeyAdapter
  46  * @see KeyEvent
  47  * @see <a href="https://docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html">Tutorial: Writing a Key Listener</a>
  48  *
  49  * @since 1.1
  50  */
  51 public interface KeyListener extends EventListener {
  52 
  53     /**
  54      * Invoked when a key has been typed.
  55      * See the class description for {@link KeyEvent} for a definition of
  56      * a key typed event.
  57      * @param e the event to be processed
  58      */
  59     public void keyTyped(KeyEvent e);
  60 
  61     /**


  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.awt.event;
  27 
  28 import java.util.EventListener;
  29 
  30 /**
  31  * The listener interface for receiving keyboard events (keystrokes).
  32  * The class that is interested in processing a keyboard event
  33  * either implements this interface (and all the methods it
  34  * contains) or extends the abstract {@code KeyAdapter} class
  35  * (overriding only the methods of interest).
  36  * <P>
  37  * The listener object created from that class is then registered with a
  38  * component using the component's {@code addKeyListener}
  39  * method. A keyboard event is generated when a key is pressed, released,
  40  * or typed. The relevant method in the listener
  41  * object is then invoked, and the {@code KeyEvent} is passed to it.
  42  *
  43  * @author Carl Quinn
  44  *
  45  * @see KeyAdapter
  46  * @see KeyEvent
  47  * @see <a href="https://docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html">Tutorial: Writing a Key Listener</a>
  48  *
  49  * @since 1.1
  50  */
  51 public interface KeyListener extends EventListener {
  52 
  53     /**
  54      * Invoked when a key has been typed.
  55      * See the class description for {@link KeyEvent} for a definition of
  56      * a key typed event.
  57      * @param e the event to be processed
  58      */
  59     public void keyTyped(KeyEvent e);
  60 
  61     /**
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