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## Uses of Class
java.util.prefs.Preferences

Packages that use Preferences
java.util.prefs | This package allows applications to store and retrieve user and system preference and configuration data.

Uses of Preferences in java.util.prefs

Subclasses of Preferences in java.util.prefs
`class` | `AbstractPreferences` This class provides a skeletal implementation of the `Preferences` class, greatly easing the task of implementing it.

Methods in java.util.prefs that return Preferences
`Preferences` | `AbstractPreferences.parent()` Implements the `parent` method as per the specification in `parent()`.
`Preferences` | `AbstractPreferences.node(String path)` Implements the `node` method as per the specification in `node(String)`.
`Preferences` | `NodeChangeEvent.getParent()` Returns the parent of the node that was added or removed.
`Preferences` | `NodeChangeEvent.getChild()` Returns the node that was added or removed.
`Preferences` | `PreferenceChangeEvent.getNode()` Returns the preference node that emitted the event.
`Preferences` | `PreferencesFactory.systemRoot()` Returns the system root preference node.
`Preferences` | `PreferencesFactory.userRoot()` Returns the user root preference node corresponding to the calling user.
`static Preferences` | `Preferences.userNodeForPackage(Class c)` Returns the preference node from the calling user's preference tree that is associated (by convention) with the specified class's package.
`static Preferences` | `Preferences.systemNodeForPackage(Class c)` Returns the preference node from the system preference tree that is associated (by convention) with the specified class's package.
`static Preferences` | `Preferences.userRoot()` Returns the root preference node for the calling user.
`static Preferences` | `Preferences.systemRoot()` Returns the root preference node for the system.
`abstract Preferences` | `Preferences.parent()` Returns the parent of this preference node, or `null` if this is the root.
`abstract Preferences` | `Preferences.node(String pathName)` Returns the named preference node in the same tree as this node, creating it and any of its ancestors if they do not already exist.

Constructors in java.util.prefs with parameters of type Preferences
`NodeChangeEvent(Preferences parent, Preferences child)` Constructs a new `NodeChangeEvent` instance.
`NodeChangeEvent(Preferences parent, Preferences child)` Constructs a new `NodeChangeEvent` instance.
`PreferenceChangeEvent(Preferences node, String key, String newValue)` Constructs a new `PreferenceChangeEvent` instance.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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