public class InputMap extends Object implements Serializable
InputMap provides a binding between an input event
 (currently only KeyStrokes are used)
 and an Object. InputMaps
 are usually used with an ActionMap,
 to determine an Action to perform
 when a key is pressed.
 An InputMap can have a parent
 that is searched for bindings not defined in the InputMap.
 As with ActionMap if you create a cycle, eg:
 
InputMap am = new InputMap(); InputMap bm = new InputMap(): am.setParent(bm); bm.setParent(am);some of the methods will cause a StackOverflowError to be thrown.
| Constructor and Description | 
|---|
| InputMap()Creates an  InputMapwith no parent and no mappings. | 
| Modifier and Type | Method and Description | 
|---|---|
| KeyStroke[] | allKeys()Returns an array of the  KeyStrokes defined in thisInputMapand its parent. | 
| void | clear()Removes all the mappings from this  InputMap. | 
| Object | get(KeyStroke keyStroke)Returns the binding for  keyStroke, messaging the
 parentInputMapif the binding is not locally defined. | 
| InputMap | getParent()Gets this  InputMap's parent. | 
| KeyStroke[] | keys()Returns the  KeyStrokes that are bound in thisInputMap. | 
| void | put(KeyStroke keyStroke,
   Object actionMapKey)Adds a binding for  keyStroketoactionMapKey. | 
| void | remove(KeyStroke key)Removes the binding for  keyfrom thisInputMap. | 
| void | setParent(InputMap map)Sets this  InputMap's parent. | 
| int | size()Returns the number of  KeyStrokebindings. | 
public void setParent(InputMap map)
InputMap's parent.map - the InputMap that is the parent of this onepublic InputMap getParent()
InputMap's parent.InputMap that is the parent of this one,
              or null if this InputMap has no parentpublic void put(KeyStroke keyStroke, Object actionMapKey)
keyStroke to actionMapKey.
 If actionMapKey is null, this removes the current binding
 for keyStroke.public Object get(KeyStroke keyStroke)
keyStroke, messaging the
 parent InputMap if the binding is not locally defined.public void remove(KeyStroke key)
key from this
 InputMap.public void clear()
InputMap.public KeyStroke[] keys()
KeyStrokes that are bound in this InputMap.public int size()
KeyStroke bindings.public KeyStroke[] allKeys()
KeyStrokes defined in this
 InputMap and its parent. This differs from keys() in that
 this method includes the keys defined in the parent. Submit a bug or feature 
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
 Copyright © 1993, 2017, Oracle and/or its affiliates.  All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.