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## Uses of Interface
java.util.Set

Packages that use Set
java.awt | Contains all of the classes for creating user interfaces and for painting graphics and images.
java.security | Provides the classes and interfaces for the security framework.
java.security.cert | Provides classes and interfaces for parsing and managing certificates.
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.

Uses of Set in java.awt

Methods in java.awt that return Set
`Set` | `RenderingHints.keySet()` Returns a `Set` view of the Keys contained in this `RenderingHints`.
`Set` | `RenderingHints.entrySet()` Returns a `Set` view of the mappings contained in this `RenderingHints`.

Uses of Set in java.security

Methods in java.security that return Set
`Set` | `Provider.entrySet()` Returns an unmodifiable Set view of the property entries contained in this Provider.
`Set` | `Provider.keySet()` Returns an unmodifiable Set view of the property keys contained in this provider.

Uses of Set in java.security.cert

Methods in java.security.cert that return Set
`Set` | `X509Extension.getCriticalExtensionOIDs()` Gets a Set of the OID strings for the extension(s) marked CRITICAL in the certificate/CRL managed by the object implementing this interface.
`Set` | `X509Extension.getNonCriticalExtensionOIDs()` Gets a Set of the OID strings for the extension(s) marked NON-CRITICAL in the certificate/CRL managed by the object implementing this interface.
`abstract Set` | `X509CRL.getRevokedCertificates()` Gets all the entries from this CRL.

Uses of Set in java.text

Methods in java.text that return Set
`Set` | `AttributedCharacterIterator.getAllAttributeKeys()` Returns the keys of all attributes defined on the iterator's text range.

Methods in java.text with parameters of type Set
`int` | `AttributedCharacterIterator.getRunStart(Set attributes)` Returns the index of the first character of the run with respect to the given attributes containing the current character.
`int` | `AttributedCharacterIterator.getRunLimit(Set attributes)` Returns the index of the first character following the run with respect to the given attributes containing the current character.

Uses of Set in java.util

Subinterfaces of Set in java.util
`interface` | `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.

Classes in java.util that implement Set
`class` | `AbstractSet` This class provides a skeletal implementation of the `Set` interface to minimize the effort required to implement this interface.
`class` | `HashSet` This class implements the `Set` interface, backed by a hash table (actually a `HashMap` instance).
`class` | `TreeSet` This class implements the `Set` interface, backed by a `TreeMap` instance.

Fields in java.util declared as Set
`static Set` | `Collections.EMPTY_SET` The empty set (immutable).

Methods in java.util that return Set
`Set` | `Hashtable.keySet()` Returns a Set view of the keys contained in this Hashtable.
`Set` | `Hashtable.entrySet()` Returns a Set view of the entries contained in this Hashtable.
`Set` | `AbstractMap.keySet()` Returns a Set view of the keys contained in this map.
`abstract Set` | `AbstractMap.entrySet()` Returns a set view of the mappings contained in this map.
`static Set` | `Collections.unmodifiableSet(Set s)` Returns an unmodifiable view of the specified set.
`static Set` | `Collections.synchronizedSet(Set s)` Returns a synchronized (thread-safe) set backed by the specified set.
`static Set` | `Collections.singleton(Object o)` Returns an immutable set containing only the specified object.
`Set` | `WeakHashMap.entrySet()` Returns a `Set` view of the mappings in this map.
`Set` | `TreeMap.keySet()` Returns a Set view of the keys contained in this map.
`Set` | `TreeMap.entrySet()` Returns a set view of the mappings contained in this map.
`Set` | `HashMap.keySet()` Returns a set view of the keys contained in this map.
`Set` | `HashMap.entrySet()` Returns a collection view of the mappings contained in this map.
`Set` | `Map.keySet()` Returns a set view of the keys contained in this map.
`Set` | `Map.entrySet()` Returns a set view of the mappings contained in this map.

Methods in java.util with parameters of type Set
`static Set` | `Collections.unmodifiableSet(Set s)` Returns an unmodifiable view of the specified set.
`static Set` | `Collections.synchronizedSet(Set s)` Returns a synchronized (thread-safe) set backed by the specified set.

Uses of Set in java.util.jar

Methods in java.util.jar that return Set
`Set` | `Attributes.keySet()` Returns a Set view of the attribute names (keys) contained in this Map.
`Set` | `Attributes.entrySet()` Returns a Collection view of the attribute name-value mappings contained in this Map.

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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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