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

Packages that use Preferences
Package | Description
--- | ---
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
Modifier and Type | Class and Description
--- | ---
`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
Modifier and Type | Method and Description
--- | ---
`Preferences` | NodeChangeEvent.`getChild()` Returns the node that was added or removed.
`Preferences` | PreferenceChangeEvent.`getNode()` Returns the preference node that emitted the event.
`Preferences` | NodeChangeEvent.`getParent()` Returns the parent of the node that was added or removed.
`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.
`Preferences` | AbstractPreferences.`node(String path)` Implements the `node` method as per the specification in `node(String)`.
`abstract Preferences` | Preferences.`parent()` Returns the parent of this preference node, or `null` if this is the root.
`Preferences` | AbstractPreferences.`parent()` Implements the `parent` method as per the specification in `parent()`.
`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.
`Preferences` | PreferencesFactory.`systemRoot()` Returns the system root preference node.
`static Preferences` | Preferences.`systemRoot()` Returns the root preference node for the system.
`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.
`Preferences` | PreferencesFactory.`userRoot()` Returns the user root preference node corresponding to the calling user.
`static Preferences` | Preferences.`userRoot()` Returns the root preference node for the calling user.

Constructors in java.util.prefs with parameters of type Preferences
Constructor and Description
`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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