| Package | Description | 
|---|---|
| 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.concurrent | 
 Utility classes commonly useful in concurrent programming. 
 | 
| javax.print.attribute.standard | 
 Package javax.print.attribute.standard
contains classes for specific printing attributes. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
EnumSet<E extends Enum<E>>
A specialized  
Set implementation for use with enum types. | 
class  | 
HashSet<E>
This class implements the Set interface, backed by a hash table
 (actually a HashMap instance). 
 | 
class  | 
LinkedHashSet<E>
Hash table and linked list implementation of the Set interface,
 with predictable iteration order. 
 | 
class  | 
TreeSet<E>
A  
NavigableSet implementation based on a TreeMap. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
ConcurrentSkipListSet<E>
A scalable concurrent  
NavigableSet implementation based on
 a ConcurrentSkipListMap. | 
class  | 
CopyOnWriteArraySet<E>
A  
Set that uses an internal CopyOnWriteArrayList
 for all of its operations. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
JobStateReasons
Class JobStateReasons is a printing attribute class, a set of enumeration
 values, that provides additional information about the job's current state,
 i.e., information that augments the value of the job's  
JobState attribute. | 
 Submit a bug or feature 
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
 Copyright © 1993, 2014, Oracle and/or its affiliates.  All rights reserved.