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## Uses of Package
java.util

Packages that use java.util
java.awt | Contains all of the classes for creating user interfaces and for painting graphics and images.
java.awt.dnd | Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI.
java.awt.event | Provides interfaces and classes for dealing with different types of events fired by AWT components.
java.beans | Contains classes related to developing beans -- components based on the JavaBeansTM architecture.
java.beans.beancontext | Provides classes and interfaces relating to bean context.
java.security | Provides the classes and interfaces for the security framework.
java.sql | Provides the API for accessing and processing data stored in a data source (usually a relational database) using the JavaTM programming language.
java.text | Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages.
java.util | Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
java.util.jar | Provides classes for reading and writing the JAR (Java ARchive) file format, which is based on the standard ZIP file format with an optional manifest file.
java.util.prefs | This package allows applications to store and retrieve user and system preference and configuration data.
javax.accessibility | Defines a contract between user-interface components and an assistive technology that provides access to those components.
javax.imageio.event | A package of the Java Image I/O API dealing with synchronous notification of events during the reading and writing of images.
javax.naming | Provides the classes and interfaces for accessing naming services.
javax.naming.event | Provides support for event notification when accessing naming and directory services.
javax.naming.ldap | Provides support for LDAPv3 extended operations and controls.
javax.net.ssl | Provides classes for the secure socket package.
javax.print.attribute.standard | Package javax.print.attribute.standard contains classes for specific printing attributes.
javax.print.event | Package javax.print.event contains event classes and listener interfaces.
javax.sound.midi | Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data.
javax.sound.sampled | Provides interfaces and classes for capture, processing, and playback of sampled audio data.
javax.sql | Provides the API for server side data source access and processing from the JavaTM programming language.
javax.swing | Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
javax.swing.event | Provides for events fired by Swing components.
javax.swing.plaf.basic | Provides user interface objects built according to the Basic look and feel.
javax.swing.plaf.metal | Provides user interface objects built according to the Java look and feel (once codenamed Metal), which is the default look and feel.
javax.swing.table | Provides classes and interfaces for dealing with `javax.swing.JTable`.
javax.swing.text | Provides classes and interfaces that deal with editable and noneditable text components.
javax.swing.text.html | Provides the class `HTMLEditorKit` and supporting classes for creating HTML text editors.
javax.swing.tree | Provides classes and interfaces for dealing with `javax.swing.JTree`.
javax.swing.undo | Allows developers to provide support for undo/redo in applications such as text editors.

Classes in java.util used by java.awt
EmptyStackException Thrown by methods in the `Stack` class to indicate that the stack is empty.
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.
Map An object that maps keys to values.

Classes in java.util used by java.awt.dnd
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.
TooManyListenersException The `TooManyListenersException` Exception is used as part of the Java Event model to annotate and implement a unicast special case of a multicast Event Source.

Classes in java.util used by java.awt.event
EventListener A tagging interface that all event listener interfaces must extend.
EventListenerProxy An abstract wrapper class for an EventListener class which associates a set of additional parameters with the listener.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by java.beans
EventListener A tagging interface that all event listener interfaces must extend.
EventListenerProxy An abstract wrapper class for an EventListener class which associates a set of additional parameters with the listener.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by java.beans.beancontext
Collection The root interface in the collection hierarchy.
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.
Iterator An iterator over a collection.
TooManyListenersException The `TooManyListenersException` Exception is used as part of the Java Event model to annotate and implement a unicast special case of a multicast Event Source.

Classes in java.util used by java.security
Dictionary The `Dictionary` class is the abstract parent of any class, such as `Hashtable`, which maps keys to values.
Hashtable This class implements a hashtable, which maps keys to values.
Map An object that maps keys to values.
Properties The `Properties` class represents a persistent set of properties.
Random An instance of this class is used to generate a stream of pseudorandom numbers.

Classes in java.util used by java.sql
Date The class `Date` represents a specific instant in time, with millisecond precision.

Classes in java.util used by java.text
Comparator A comparison function, which imposes a total ordering on some collection of objects.

Classes in java.util used by java.util
AbstractCollection This class provides a skeletal implementation of the `Collection` interface, to minimize the effort required to implement this interface.
AbstractList This class provides a skeletal implementation of the `List` interface to minimize the effort required to implement this interface backed by a "random access" data store (such as an array).
AbstractMap This class provides a skeletal implementation of the `Map` interface, to minimize the effort required to implement this interface.
AbstractSequentialList This class provides a skeletal implementation of the `List` interface to minimize the effort required to implement this interface backed by a "sequential access" data store (such as a linked list).
AbstractSet This class provides a skeletal implementation of the `Set` interface to minimize the effort required to implement this interface.
Calendar `Calendar` is an abstract base class for converting between a `Date` object and a set of integer fields such as `YEAR`, `MONTH`, `DAY`, `HOUR`, and so on.
Collection The root interface in the collection hierarchy.
Dictionary The `Dictionary` class is the abstract parent of any class, such as `Hashtable`, which maps keys to values.
Enumeration An object that implements the Enumeration interface generates a series of elements, one at a time.
EventListener A tagging interface that all event listener interfaces must extend.
HashMap Hash table based implementation of the `Map` interface.
HashSet This class implements the `Set` interface, backed by a hash table (actually a `HashMap` instance).
Hashtable This class implements a hashtable, which maps keys to values.
Iterator An iterator over a collection.
List An ordered collection (also known as a sequence).
Map An object that maps keys to values.
MissingResourceException Signals that a resource is missing.
RandomAccess Marker interface used by `List` implementations to indicate that they support fast (generally constant time) random access.
ResourceBundle Resource bundles contain locale-specific objects.
Set A collection that contains no duplicate elements.
SortedMap A map that further guarantees that it will be in ascending key order, sorted according to the natural ordering of its keys (see the `Comparable` interface), or by a comparator provided at sorted map creation time.
SortedSet A set that further guarantees that its iterator will traverse the set in ascending element order, sorted according to the natural ordering of its elements (see Comparable), or by a Comparator provided at sorted set creation time.
TimeZone `TimeZone` represents a time zone offset, and also figures out daylight savings.
Vector The `Vector` class implements a growable array of objects.

Classes in java.util used by java.util.jar
Map An object that maps keys to values.

Classes in java.util used by java.util.prefs
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.accessibility
ListResourceBundle `ListResourceBundle` is an abstract subclass of `ResourceBundle` that manages resources for a locale in a convenient and easy to use list.
ResourceBundle Resource bundles contain locale-specific objects.

Classes in java.util used by javax.imageio.event
EventListener A tagging interface that all event listener interfaces must extend.

Classes in java.util used by javax.naming
Enumeration An object that implements the Enumeration interface generates a series of elements, one at a time.

Classes in java.util used by javax.naming.event
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.naming.ldap
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.net.ssl
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.print.attribute.standard
AbstractCollection This class provides a skeletal implementation of the `Collection` interface, to minimize the effort required to implement this interface.
AbstractMap This class provides a skeletal implementation of the `Map` interface, to minimize the effort required to implement this interface.
AbstractSet This class provides a skeletal implementation of the `Set` interface to minimize the effort required to implement this interface.
Collection The root interface in the collection hierarchy.
HashMap Hash table based implementation of the `Map` interface.
HashSet This class implements the `Set` interface, backed by a hash table (actually a `HashMap` instance).
Map An object that maps keys to values.
Set A collection that contains no duplicate elements.

Classes in java.util used by javax.print.event
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.sound.midi
EventListener A tagging interface that all event listener interfaces must extend.

Classes in java.util used by javax.sound.sampled
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.sql
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.swing
Dictionary The `Dictionary` class is the abstract parent of any class, such as `Hashtable`, which maps keys to values.
EventListener A tagging interface that all event listener interfaces must extend.
Hashtable This class implements a hashtable, which maps keys to values.
Map An object that maps keys to values.

Classes in java.util used by javax.swing.event
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.swing.plaf.basic
EventListener A tagging interface that all event listener interfaces must extend.

Classes in java.util used by javax.swing.plaf.metal
EventListener A tagging interface that all event listener interfaces must extend.

Classes in java.util used by javax.swing.table
EventListener A tagging interface that all event listener interfaces must extend.

Classes in java.util used by javax.swing.text
EventListener A tagging interface that all event listener interfaces must extend.

Classes in java.util used by javax.swing.text.html
EventListener A tagging interface that all event listener interfaces must extend.
EventObject The root class from which all event state objects shall be derived.

Classes in java.util used by javax.swing.tree
EventListener A tagging interface that all event listener interfaces must extend.

Classes in java.util used by javax.swing.undo
EventListener A tagging interface that all event listener interfaces must extend.

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| JavaTM 2 Platform Std. Ed. v1.4.0
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