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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.
Java 2 Platform SE v1.4.0: Uses of Package java.util - JDK 5 Documentation v1.4.0, Java 2 SDK 英文文档
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JavaTM 2 Platform Std. Ed. v1.4.0 |
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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
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Thrown by methods in the Stack class to indicate
that the stack is empty.EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. Map
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An object that maps keys to values. |
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Classes in java.util used by java.awt.dnd| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. TooManyListenersException
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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. |
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Classes in java.util used by java.awt.event| EventListener
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A tagging interface that all event listener interfaces must extend. EventListenerProxy
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An abstract wrapper class for an EventListener class which associates a set of additional parameters with the listener. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by java.beans| EventListener
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A tagging interface that all event listener interfaces must extend. EventListenerProxy
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An abstract wrapper class for an EventListener class which associates a set of additional parameters with the listener. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by java.beans.beancontext| Collection
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The root interface in the collection hierarchy. EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. Iterator
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An iterator over a collection. TooManyListenersException
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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. |
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Classes in java.util used by java.security| Dictionary
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The Dictionary class is the abstract parent of any
class, such as Hashtable, which maps keys to values.Hashtable
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This class implements a hashtable, which maps keys to values. Map
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An object that maps keys to values. Properties
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The Properties class represents a persistent set of
properties.Random
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An instance of this class is used to generate a stream of pseudorandom numbers. |
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Classes in java.util used by java.sql| Date
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The class Date represents a specific instant
in time, with millisecond precision. |
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Classes in java.util used by java.text| Comparator
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A comparison function, which imposes a total ordering on some collection of objects. |
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Classes in java.util used by java.util| AbstractCollection
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This class provides a skeletal implementation of the Collection interface, to minimize the effort required to implement this interface. AbstractList
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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
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This class provides a skeletal implementation of the Map interface, to minimize the effort required to implement this interface. AbstractSequentialList
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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
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This class provides a skeletal implementation of the Set interface to minimize the effort required to implement this interface. Calendar
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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
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The root interface in the collection hierarchy. Dictionary
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The Dictionary class is the abstract parent of any
class, such as Hashtable, which maps keys to values.Enumeration
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An object that implements the Enumeration interface generates a series of elements, one at a time. EventListener
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A tagging interface that all event listener interfaces must extend. HashMap
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Hash table based implementation of the Map interface. HashSet
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This class implements the Set interface, backed by a hash table (actually a HashMap instance). Hashtable
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This class implements a hashtable, which maps keys to values. Iterator
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An iterator over a collection. List
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An ordered collection (also known as a sequence). Map
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An object that maps keys to values. MissingResourceException
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Signals that a resource is missing. RandomAccess
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Marker interface used by List implementations to indicate that they support fast (generally constant time) random access. ResourceBundle
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Resource bundles contain locale-specific objects. Set
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A collection that contains no duplicate elements. SortedMap
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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
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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
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TimeZone represents a time zone offset, and also figures out daylight
savings.Vector
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The Vector class implements a growable array of
objects. |
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Classes in java.util used by java.util.jar| Map
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An object that maps keys to values. |
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Classes in java.util used by java.util.prefs| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.accessibility| ListResourceBundle
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ListResourceBundle is an abstract subclass of
ResourceBundle that manages resources for a locale
in a convenient and easy to use list.ResourceBundle
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Resource bundles contain locale-specific objects. |
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Classes in java.util used by javax.imageio.event| EventListener
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A tagging interface that all event listener interfaces must extend. |
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Classes in java.util used by javax.naming| Enumeration
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An object that implements the Enumeration interface generates a series of elements, one at a time. |
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Classes in java.util used by javax.naming.event| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.naming.ldap| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.net.ssl| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.print.attribute.standard| AbstractCollection
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This class provides a skeletal implementation of the Collection interface, to minimize the effort required to implement this interface. AbstractMap
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This class provides a skeletal implementation of the Map interface, to minimize the effort required to implement this interface. AbstractSet
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This class provides a skeletal implementation of the Set interface to minimize the effort required to implement this interface. Collection
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The root interface in the collection hierarchy. HashMap
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Hash table based implementation of the Map interface. HashSet
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This class implements the Set interface, backed by a hash table (actually a HashMap instance). Map
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An object that maps keys to values. Set
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A collection that contains no duplicate elements. |
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Classes in java.util used by javax.print.event| EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.sound.midi| EventListener
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A tagging interface that all event listener interfaces must extend. |
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Classes in java.util used by javax.sound.sampled| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.sql| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.swing| Dictionary
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The Dictionary class is the abstract parent of any
class, such as Hashtable, which maps keys to values.EventListener
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A tagging interface that all event listener interfaces must extend. Hashtable
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This class implements a hashtable, which maps keys to values. Map
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An object that maps keys to values. |
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Classes in java.util used by javax.swing.event| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.swing.plaf.basic| EventListener
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A tagging interface that all event listener interfaces must extend. |
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Classes in java.util used by javax.swing.plaf.metal| EventListener
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A tagging interface that all event listener interfaces must extend. |
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Classes in java.util used by javax.swing.table| EventListener
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A tagging interface that all event listener interfaces must extend. |
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Classes in java.util used by javax.swing.text| EventListener
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A tagging interface that all event listener interfaces must extend. |
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Classes in java.util used by javax.swing.text.html| EventListener
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A tagging interface that all event listener interfaces must extend. EventObject
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The root class from which all event state objects shall be derived. |
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Classes in java.util used by javax.swing.tree| EventListener
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A tagging interface that all event listener interfaces must extend. |
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Classes in java.util used by javax.swing.undo| EventListener
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A tagging interface that all event listener interfaces must extend. |
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JavaTM 2 Platform Std. Ed. v1.4.0 |
||||||||||
| PREV NEXT | FRAMES NO FRAMES | ||||||||||
Submit a bug or feature
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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