Java Module java.desktop Package javax.swing Class InputMap（JDK11）

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java.lang.Object
- javax.swing.InputMap

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ComponentInputMap, InputMapUIResource
```
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.
Since:

1.3

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`InputMap()`	Creates an `InputMap` with no parent and no mappings.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`KeyStroke[]`	`allKeys()`	Returns an array of the `KeyStroke`s defined in this `InputMap` and its parent.
`void`	`clear()`	Removes all the mappings from this `InputMap`.
`Object`	`get(KeyStroke keyStroke)`	Returns the binding for `keyStroke`, messaging the parent `InputMap` if the binding is not locally defined.
`InputMap`	`getParent()`	Gets this `InputMap`'s parent.
`KeyStroke[]`	`keys()`	Returns the `KeyStroke`s that are bound in this `InputMap`.
`void`	`put(KeyStroke keyStroke, Object actionMapKey)`	Adds a binding for `keyStroke` to `actionMapKey`.
`void`	`remove(KeyStroke key)`	Removes the binding for `key` from this `InputMap`.
`void`	`setParent(InputMap map)`	Sets this `InputMap`'s parent.
`int`	`size()`	Returns the number of `KeyStroke` bindings.

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - InputMap
```
public InputMap()
```
    Creates an InputMap with no parent and no mappings.
- Method Detail
  - setParent
```
public void setParent(InputMap map)
```
    Sets this InputMap's parent.
    
    Parameters:
    
    map - the InputMap that is the parent of this one
  - getParent
```
public InputMap getParent()
```
    Gets this InputMap's parent.
    
    Returns:
    
    map the InputMap that is the parent of this one, or null if this InputMap has no parent
  - put
```
public void put(KeyStroke keyStroke,
                Object actionMapKey)
```
    Adds a binding for keyStroke to actionMapKey. If actionMapKey is null, this removes the current binding for keyStroke.
    
    Parameters:
    
    keyStroke - a KeyStroke
    
    actionMapKey - an action map key
  - get
```
public Object get(KeyStroke keyStroke)
```
    Returns the binding for keyStroke, messaging the parent InputMap if the binding is not locally defined.
    
    Parameters:
    
    keyStroke - the KeyStroke for which to get the binding
    
    Returns:
    
    the binding for keyStroke
  - remove
```
public void remove(KeyStroke key)
```
    Removes the binding for key from this InputMap.
    
    Parameters:
    
    key - the KeyStroke for which to remove the binding
  - clear
```
public void clear()
```
    Removes all the mappings from this InputMap.
  - keys
```
public KeyStroke[] keys()
```
    Returns the KeyStrokes that are bound in this InputMap.
    
    Returns:
    
    an array of the KeyStrokes that are bound in this InputMap
  - size
```
public int size()
```
    Returns the number of KeyStroke bindings.
    
    Returns:
    
    the number of KeyStroke bindings
  - allKeys
```
public KeyStroke[] allKeys()
```
    Returns an array of the KeyStrokes defined in this InputMap and its parent. This differs from keys() in that this method includes the keys defined in the parent.
    
    Returns:
    
    an array of the KeyStrokes defined in this InputMap and its parent

Java Module java.desktop Package javax.swing Class InputMap（JDK11）

Class InputMap

Constructor Summary

Method Summary

Methods declared in class java.lang.Object

Constructor Detail

InputMap

Method Detail

setParent

getParent

put

get

remove

clear

keys

size

allKeys