Uses of Interface
java.util.Set

Packages that use Set

Package	Description
java.nio.charset
java.text
java.util	Back 2 Browser Bytecode Translator Copyright (C) 2012 Jaroslav Tulach This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2 of the License.
java.util.concurrent	Utility classes commonly useful in concurrent programming.
java.util.stream	Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.

Uses of Set in java.nio.charset

Methods in java.nio.charset that return Set

Modifier and Type	Method and Description
Set<String>	Charset.aliases() Returns a set containing this charset's aliases.

Uses of Set in java.text

Methods in java.text that return Set

Modifier and Type	Method and Description
Set<AttributedCharacterIterator.Attribute>	AttributedCharacterIterator.getAllAttributeKeys() Returns the keys of all attributes defined on the iterator's text range.

Methods in java.text with parameters of type Set

Modifier and Type	Method and Description
int	AttributedCharacterIterator.getRunLimit(Set<? extends AttributedCharacterIterator.Attribute> attributes) Returns the index of the first character following the run with respect to the given attributes containing the current character.
int	AttributedCharacterIterator.getRunStart(Set<? extends AttributedCharacterIterator.Attribute> attributes) Returns the index of the first character of the run with respect to the given attributes containing the current character.

Uses of Set in java.util

Subinterfaces of Set in java.util

Modifier and Type	Interface and Description
interface	NavigableSet<E> A SortedSet extended with navigation methods reporting closest matches for given search targets.
interface	SortedSet<E> A Set that further provides a total ordering on its elements.

Classes in java.util that implement Set

Modifier and Type	Class and Description
class	AbstractSet<E> This class provides a skeletal implementation of the Set interface to minimize the effort required to implement this interface.
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.

Fields in java.util declared as Set

Modifier and Type	Field and Description
static Set	Collections.EMPTY_SET The empty set (immutable).

Methods in java.util that return Set

Modifier and Type	Method and Description
static <T> Set<T>	Collections.emptySet() Returns the empty set (immutable).
Set<Map.Entry<K,V>>	WeakHashMap.entrySet() Returns a Set view of the mappings contained in this map.
Set<Map.Entry<K,V>>	TreeMap.entrySet() Returns a Set view of the mappings contained in this map.
Set<Map.Entry<K,V>>	SortedMap.entrySet() Returns a Set view of the mappings contained in this map.
Set<Map.Entry<K,V>>	Map.entrySet() Returns a Set view of the mappings contained in this map.
Set<Map.Entry<K,V>>	IdentityHashMap.entrySet() Returns a Set view of the mappings contained in this map.
Set<Map.Entry<K,V>>	Hashtable.entrySet() Returns a Set view of the mappings contained in this map.
Set<Map.Entry<K,V>>	HashMap.entrySet() Returns a Set view of the mappings contained in this map.
Set<Map.Entry<K,V>>	EnumMap.entrySet() Returns a Set view of the mappings contained in this map.
abstract Set<Map.Entry<K,V>>	AbstractMap.entrySet()
static Set<Currency>	Currency.getAvailableCurrencies() Gets the set of available currencies.
Set<Character>	Locale.getExtensionKeys() Returns the set of extension keys associated with this locale, or the empty set if it has no extensions.
Set<String>	Locale.getUnicodeLocaleAttributes() Returns the set of unicode locale attributes associated with this locale, or the empty set if it has no attributes.
Set<String>	Locale.getUnicodeLocaleKeys() Returns the set of Unicode locale keys defined by this locale, or the empty set if this locale has none.
protected Set<String>	ResourceBundle.handleKeySet() Returns a Set of the keys contained only in this ResourceBundle.
protected Set<String>	PropertyResourceBundle.handleKeySet() Returns a Set of the keys contained only in this ResourceBundle.
static <E> Set<E>	Collections.checkedSet(Set<E> s, Class<E> type) Returns a dynamically typesafe view of the specified set.
Set<K>	WeakHashMap.keySet() Returns a Set view of the keys contained in this map.
Set<K>	TreeMap.keySet() Returns a Set view of the keys contained in this map.
Set<K>	SortedMap.keySet() Returns a Set view of the keys contained in this map.
Set<String>	ResourceBundle.keySet() Returns a Set of all keys contained in this ResourceBundle and its parent bundles.
Set<K>	Map.keySet() Returns a Set view of the keys contained in this map.
Set<K>	IdentityHashMap.keySet() Returns an identity-based set view of the keys contained in this map.
Set<K>	Hashtable.keySet() Returns a Set view of the keys contained in this map.
Set<K>	HashMap.keySet() Returns a Set view of the keys contained in this map.
Set<K>	EnumMap.keySet() Returns a Set view of the keys contained in this map.
Set<K>	AbstractMap.keySet() Returns a Set view of the keys contained in this map.
static <E> Set<E>	Collections.newSetFromMap(Map<E,Boolean> map) Returns a set backed by the specified map.
static <T> Set<T>	Collections.singleton(T o) Returns an immutable set containing only the specified object.
Set<String>	Properties.stringPropertyNames() Returns a set of keys in this property list where the key and its corresponding value are strings, including distinct keys in the default property list if a key of the same name has not already been found from the main properties list.
static <T> Set<T>	Collections.synchronizedSet(Set<T> s) Returns a synchronized (thread-safe) set backed by the specified set.
static <T> Set<T>	Collections.unmodifiableSet(Set<? extends T> s) Returns an unmodifiable view of the specified set.

Methods in java.util with parameters of type Set

Modifier and Type	Method and Description
static <E> Set<E>	Collections.checkedSet(Set<E> s, Class<E> type) Returns a dynamically typesafe view of the specified set.
static <T> Set<T>	Collections.synchronizedSet(Set<T> s) Returns a synchronized (thread-safe) set backed by the specified set.
static <T> Set<T>	Collections.unmodifiableSet(Set<? extends T> s) Returns an unmodifiable view of the specified set.

Uses of Set in java.util.concurrent

Classes in java.util.concurrent that implement Set

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.

Methods in java.util.concurrent that return Set

Modifier and Type	Method and Description
Set<Map.Entry<K,V>>	ConcurrentSkipListMap.entrySet() Returns a Set view of the mappings contained in this map.
Set<Map.Entry<K,V>>	ConcurrentHashMap.entrySet()
Set<K>	ConcurrentHashMap.keySet()

Uses of Set in java.util.stream

Methods in java.util.stream that return Set

Modifier and Type	Method and Description
Set<Collector.Characteristics>	Collector.characteristics() Returns a Set of Collector.Characteristics indicating the characteristics of this Collector.

Methods in java.util.stream that return types with arguments of type Set

Modifier and Type	Method and Description
static <T> Collector<T,?,Set<T>>	Collectors.toSet() Returns a Collector that accumulates the input elements into a new Set.