JavaTM 2 Platform
Std. Ed. v1.3.1

Uses of Package
java.util

Packages that use java.util
com.apple.mrj.dnd   
java.applet   
java.awt   
java.awt.datatransfer   
java.awt.dnd   
java.awt.event   
java.awt.font   
java.awt.im   
java.awt.im.spi   
java.awt.image   
java.awt.image.renderable   
java.beans   
java.beans.beancontext   
java.io   
java.lang   
java.math   
java.net   
java.rmi.activation   
java.security   
java.security.acl   
java.security.cert   
java.sql   
java.text   
java.util   
java.util.jar   
java.util.zip   
javax.accessibility   
javax.naming   
javax.naming.directory   
javax.naming.event   
javax.naming.ldap   
javax.naming.spi   
javax.swing   
javax.swing.event   
javax.swing.plaf.basic   
javax.swing.plaf.metal   
javax.swing.plaf.multi   
javax.swing.table   
javax.swing.text   
javax.swing.text.html   
javax.swing.text.html.parser   
javax.swing.tree   
javax.swing.undo   
org.omg.CORBA   
 

Classes in java.util used by com.apple.mrj.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.
 

Classes in java.util used by java.applet
Enumeration
          An object that implements the Enumeration interface generates a series of elements, one at a time.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
 

Classes in java.util used by java.awt
Collection
          The root interface in the collection hierarchy.
EmptyStackException
          Thrown by methods in the Stack class to indicate that the stack is empty.
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.
EventObject
           The root class from which all event state objects shall be derived.
Hashtable
          This class implements a hashtable, which maps keys to values.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
Map
          An object that maps keys to values.
Properties
          The Properties class represents a persistent set of properties.
ResourceBundle
          Resource bundles contain locale-specific objects.
Set
          A collection that contains no duplicate elements.
 

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

Classes in java.util used by java.awt.dnd
ArrayList
          Resizable-array implementation of the List interface.
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.
List
          An ordered collection (also known as a sequence).
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.
EventObject
           The root class from which all event state objects shall be derived.
 

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

Classes in java.util used by java.awt.im
Locale
          A Locale object represents a specific geographical, political, or cultural region.
Map
          An object that maps keys to values.
 

Classes in java.util used by java.awt.im.spi
Locale
          A Locale object represents a specific geographical, political, or cultural region.
 

Classes in java.util used by java.awt.image
Hashtable
          This class implements a hashtable, which maps keys to values.
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by java.awt.image.renderable
Vector
          The Vector class implements a growable array of objects.
 

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

Classes in java.util used by java.beans.beancontext
ArrayList
          Resizable-array implementation of the List interface.
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.
HashMap
          Hash table based implementation of the Map interface.
Iterator
          An iterator over a collection.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
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.io
Enumeration
          An object that implements the Enumeration interface generates a series of elements, one at a time.
 

Classes in java.util used by java.lang
Comparator
          A comparison function, which imposes a total ordering on some collection of objects.
Enumeration
          An object that implements the Enumeration interface generates a series of elements, one at a time.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
Properties
          The Properties class represents a persistent set of properties.
 

Classes in java.util used by java.math
Random
          An instance of this class is used to generate a stream of pseudorandom numbers.
 

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

Classes in java.util used by java.rmi.activation
Properties
          The Properties class represents a persistent set of properties.
 

Classes in java.util used by java.security
Collection
          The root interface in the collection hierarchy.
Date
          The class Date represents a specific instant in time, with millisecond precision.
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.
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.
Set
          A collection that contains no duplicate elements.
 

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

Classes in java.util used by java.security.cert
Collection
          The root interface in the collection hierarchy.
Date
          The class Date represents a specific instant in time, with millisecond precision.
Set
          A collection that contains no duplicate elements.
 

Classes in java.util used by java.sql
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.
Date
          The class Date represents a specific instant in time, with millisecond precision.
Enumeration
          An object that implements the Enumeration interface generates a series of elements, one at a time.
Map
          An object that maps keys to values.
Properties
          The Properties class represents a persistent set of properties.
 

Classes in java.util used by java.text
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.
Comparator
          A comparison function, which imposes a total ordering on some collection of objects.
Date
          The class Date represents a specific instant in time, with millisecond precision.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
Map
          An object that maps keys to values.
Set
          A collection that contains no duplicate elements.
TimeZone
          TimeZone represents a time zone offset, and also figures out daylight savings.
 

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.
BitSet
          This class implements a vector of bits that grows as needed.
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.
Comparator
          A comparison function, which imposes a total ordering on some collection of objects.
Date
          The class Date represents a specific instant in time, with millisecond precision.
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.
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).
ListIterator
          An iterator for lists that allows the programmer to traverse the list in either direction and modify the list during iteration.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
Map
          An object that maps keys to values.
MissingResourceException
          Signals that a resource is missing.
Observable
          This class represents an observable object, or "data" in the model-view paradigm.
Observer
          A class can implement the Observer interface when it wants to be informed of changes in observable objects.
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.
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.
TimerTask
          A task that can be scheduled for one-time or repeated execution by a Timer.
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
Collection
          The root interface in the collection hierarchy.
Enumeration
          An object that implements the Enumeration interface generates a series of elements, one at a time.
Map
          An object that maps keys to values.
Set
          A collection that contains no duplicate elements.
 

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

Classes in java.util used by javax.accessibility
ListResourceBundle
          ListResourceBundle is a abstract subclass of ResourceBundle that manages resources for a locale in a convenient and easy to use list.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
ResourceBundle
          Resource bundles contain locale-specific objects.
Vector
          The Vector class implements a growable array of objects.
 

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.
Hashtable
          This class implements a hashtable, which maps keys to values.
Properties
          The Properties class represents a persistent set of properties.
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by javax.naming.directory
Hashtable
          This class implements a hashtable, which maps keys to values.
Vector
          The Vector class implements a growable array of objects.
 

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.
Hashtable
          This class implements a hashtable, which maps keys to values.
 

Classes in java.util used by javax.naming.spi
Hashtable
          This class implements a hashtable, which maps keys to values.
 

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.
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.
EventObject
           The root class from which all event state objects shall be derived.
Hashtable
          This class implements a hashtable, which maps keys to values.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
Map
          An object that maps keys to values.
Vector
          The Vector class implements a growable array of objects.
 

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.
Hashtable
          This class implements a hashtable, which maps keys to values.
Vector
          The Vector class implements a growable array of objects.
 

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.plaf.multi
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by javax.swing.table
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.
Locale
          A Locale object represents a specific geographical, political, or cultural region.
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by javax.swing.text
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.
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by javax.swing.text.html
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.
EventObject
           The root class from which all event state objects shall be derived.
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by javax.swing.text.html.parser
BitSet
          This class implements a vector of bits that grows as needed.
Enumeration
          An object that implements the Enumeration interface generates a series of elements, one at a time.
Hashtable
          This class implements a hashtable, which maps keys to values.
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by javax.swing.tree
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.
EventObject
           The root class from which all event state objects shall be derived.
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by javax.swing.undo
EventListener
          A tagging interface that all event listener interfaces must extend.
Hashtable
          This class implements a hashtable, which maps keys to values.
Vector
          The Vector class implements a growable array of objects.
 

Classes in java.util used by org.omg.CORBA
Properties
          The Properties class represents a persistent set of properties.
 


JavaTM 2 Platform
Std. Ed. v1.3.1

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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