| Package | Description | 
|---|---|
| java.util.prefs | 
 This package allows applications to store and retrieve user and system
preference and configuration data. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
void | 
AbstractPreferences.addNodeChangeListener(NodeChangeListener ncl)  | 
abstract void | 
Preferences.addNodeChangeListener(NodeChangeListener ncl)
Registers the specified listener to receive node change events
 for this node. 
 | 
void | 
AbstractPreferences.removeNodeChangeListener(NodeChangeListener ncl)  | 
abstract void | 
Preferences.removeNodeChangeListener(NodeChangeListener ncl)
Removes the specified NodeChangeListener, so it no longer
 receives change events. 
 | 
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