Uses of Class java.util.prefs.Preferences (Java SE 11 & JDK 11 )

Packages that use Preferences
Package	Description
java.util.prefs	This package allows applications to store and retrieve user and system preference and configuration data.
jdk.jshell.tool	Provides a mechanism to launch an instance of a Java™ shell tool.

Uses of Preferences in java.util.prefs

Subclasses of Preferences in java.util.prefs
Modifier and Type	Class	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	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.
`Preferences`	AbstractPreferences.`node(String path)`	Implements the `node` method as per the specification in `node(String)`.
`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.`parent()`	Implements the `parent` method as per the specification in `parent()`.
`abstract Preferences`	Preferences.`parent()`	Returns the parent of this preference node, or `null` if this is the root.
`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.`systemRoot()`	Returns the root preference node for the system.
`Preferences`	PreferencesFactory.`systemRoot()`	Returns the system root preference node.
`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.`userRoot()`	Returns the root preference node for the calling user.
`Preferences`	PreferencesFactory.`userRoot()`	Returns the user root preference node corresponding to the calling user.

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

Uses of Preferences in jdk.jshell.tool

Methods in jdk.jshell.tool with parameters of type Preferences
Modifier and Type	Method	Description
`JavaShellToolBuilder`	JavaShellToolBuilder.`persistence(Preferences prefs)`	Set the storage mechanism for persistent information which includes input history and retained settings.