| 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 | 
|---|---|
String[] | 
AbstractPreferences.childrenNames()
Implements the children method as per the specification in
  
Preferences.childrenNames(). | 
abstract String[] | 
Preferences.childrenNames()
Returns the names of the children of this preference node, relative to
 this node. 
 | 
protected abstract String[] | 
AbstractPreferences.childrenNamesSpi()
Returns the names of the children of this preference node. 
 | 
void | 
AbstractPreferences.clear()
Implements the clear method as per the specification in
  
Preferences.clear(). | 
abstract void | 
Preferences.clear()
Removes all of the preferences (key-value associations) in this
 preference node. 
 | 
void | 
AbstractPreferences.exportNode(OutputStream os)
Implements the exportNode method as per the specification in
  
Preferences.exportNode(OutputStream). | 
abstract void | 
Preferences.exportNode(OutputStream os)
Emits on the specified output stream an XML document representing all
 of the preferences contained in this node (but not its descendants). 
 | 
void | 
AbstractPreferences.exportSubtree(OutputStream os)
Implements the exportSubtree method as per the specification in
  
Preferences.exportSubtree(OutputStream). | 
abstract void | 
Preferences.exportSubtree(OutputStream os)
Emits an XML document representing all of the preferences contained
 in this node and all of its descendants. 
 | 
void | 
AbstractPreferences.flush()
Implements the flush method as per the specification in
  
Preferences.flush(). | 
abstract void | 
Preferences.flush()
Forces any changes in the contents of this preference node and its
 descendants to the persistent store. 
 | 
protected abstract void | 
AbstractPreferences.flushSpi()
This method is invoked with this node locked. 
 | 
protected AbstractPreferences | 
AbstractPreferences.getChild(String nodeName)
Returns the named child if it exists, or null if it does not. 
 | 
String[] | 
AbstractPreferences.keys()
Implements the keys method as per the specification in
  
Preferences.keys(). | 
abstract String[] | 
Preferences.keys()
Returns all of the keys that have an associated value in this
 preference node. 
 | 
protected abstract String[] | 
AbstractPreferences.keysSpi()
Returns all of the keys that have an associated value in this
 preference node. 
 | 
boolean | 
AbstractPreferences.nodeExists(String path)
Implements the nodeExists method as per the specification in
  
Preferences.nodeExists(String). | 
abstract boolean | 
Preferences.nodeExists(String pathName)
Returns true if the named preference node exists in the same tree
 as this node. 
 | 
void | 
AbstractPreferences.removeNode()
Implements the removeNode() method as per the specification in
  
Preferences.removeNode(). | 
abstract void | 
Preferences.removeNode()
Removes this preference node and all of its descendants, invalidating
 any preferences contained in the removed nodes. 
 | 
protected abstract void | 
AbstractPreferences.removeNodeSpi()
Removes this preference node, invalidating it and any preferences that
 it contains. 
 | 
void | 
AbstractPreferences.sync()
Implements the sync method as per the specification in
  
Preferences.sync(). | 
abstract void | 
Preferences.sync()
Ensures that future reads from this preference node and its
 descendants reflect any changes that were committed to the persistent
 store (from any VM) prior to the sync invocation. 
 | 
protected abstract void | 
AbstractPreferences.syncSpi()
This method is invoked with this node locked. 
 | 
 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, 2014, Oracle and/or its affiliates.  All rights reserved.