All Superinterfaces:

EventListener

All Known Implementing Classes:

AWTEventMulticaster, BasicComboBoxUI.KeyHandler, BasicComboPopup.InvocationKeyHandler, BasicTableUI.KeyHandler, BasicTreeUI.KeyHandler, KeyAdapter
```
public interface KeyListener
extends EventListener
```
The listener interface for receiving keyboard events (keystrokes). The class that is interested in processing a keyboard event either implements this interface (and all the methods it contains) or extends the abstract KeyAdapter class (overriding only the methods of interest).
The listener object created from that class is then registered with a component using the component's addKeyListener method. A keyboard event is generated when a key is pressed, released, or typed. The relevant method in the listener object is then invoked, and the KeyEvent is passed to it.

Since:

1.1

See Also:
KeyAdapter, KeyEvent, Tutorial: Writing a Key Listener

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`keyPressed(KeyEvent e)` Invoked when a key has been pressed.
`void`	`keyReleased(KeyEvent e)` Invoked when a key has been released.
`void`	`keyTyped(KeyEvent e)` Invoked when a key has been typed.

KeyListener (Java Platform SE 7 ) Home of API Java Contents Haut

- Method Detail
  - keyTyped
```
void keyTyped(KeyEvent e)
```
    Invoked when a key has been typed. See the class description for KeyEvent for a definition of a key typed event.
  - keyPressed
```
void keyPressed(KeyEvent e)
```
    Invoked when a key has been pressed. See the class description for KeyEvent for a definition of a key pressed event.
  - keyReleased
```
void keyReleased(KeyEvent e)
```
    Invoked when a key has been released. See the class description for KeyEvent for a definition of a key released event.

Document created the 11/06/2005, last modified the 04/03/2020
Source of the printed document:https://www.gaudry.be/en/java-api-rf-java/awt/event/keylistener.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

Manuel PHP : https://docs.oracle.com

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Contents Haut

Interface KeyListener

Method Summary

Method Detail

keyTyped

keyPressed

keyReleased

References