Module java.prefs

Package java.util.prefs


package java.util.prefs
This package allows applications to store and retrieve user and system preference and configuration data. This data is stored persistently in an implementation-dependent backing store. There are two separate trees of preference nodes, one for user preferences and one for system preferences.
Since:
1.4
  • Related Packages
    Module
    Package
    Description
    Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.
  • Interface Summary
    Interface
    Description
    A listener for receiving preference node change events.
    A listener for receiving preference change events.
    A factory object that generates Preferences objects.
  • Class Summary
    Class
    Description
    This class provides a skeletal implementation of the Preferences class, greatly easing the task of implementing it.
    An event emitted by a Preferences node to indicate that a child of that node has been added or removed.
    An event emitted by a Preferences node to indicate that a preference has been added, removed or has had its value changed.
    A node in a hierarchical collection of preference data.
  • Exception Summary
    Exception
    Description
    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.
    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.