This interface is an abstraction of all user input capabilities of a device.
Classes implementing this interface provide methods that are called when user of the device will generate key events, for example, pressing the keys available in a system keypad or keyboard.
Please note that this package has no dependency with the LUI package or any other graphical API that may be part of an implementation. A device may have keys without a display.
Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved. Use of this specification is subject to license terms.