# Uses of Package
java.util.prefs

Packages that use java.util.prefs
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.

- Classes in java.util.prefs used by java.util.prefs
  Class
  Description
  AbstractPreferences
  This class provides a skeletal implementation of the `Preferences` class, greatly easing the task of implementing it.
  BackingStoreException
  Thrown to indicate that a preferences operation could not complete because of a failure in the backing store, or a failure to contact the backing store.
  InvalidPreferencesFormatException
  Thrown to indicate that an operation could not complete because the input did not conform to the appropriate XML document type for a collection of preferences, as per the `Preferences` specification.
  NodeChangeEvent
  An event emitted by a `Preferences` node to indicate that a child of that node has been added or removed.
  NodeChangeListener
  A listener for receiving preference node change events.
  PreferenceChangeEvent
  An event emitted by a `Preferences` node to indicate that a preference has been added, removed or has had its value changed.
  PreferenceChangeListener
  A listener for receiving preference change events.
  Preferences
  A node in a hierarchical collection of preference data.
- Classes in java.util.prefs used by jdk.jshell.tool
  Class
  Description
  Preferences
  A node in a hierarchical collection of preference data.