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## Uses of Interface
java.util.Collection

Packages that use Collection
java.security | Provides the classes and interfaces for the security framework.
java.security.cert | Provides classes and interfaces for parsing and managing certificates.
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 Collection in java.security

Methods in java.security that return Collection
`Collection` | `Provider.values()` Returns an unmodifiable Collection view of the property values contained in this provider.

Uses of Collection in java.security.cert

Methods in java.security.cert that return Collection
`Collection` | `CertificateFactory.generateCertificates(InputStream inStream)` Returns a (possibly empty) collection view of the certificates read from the given input stream `inStream`.
`Collection` | `CertificateFactory.generateCRLs(InputStream inStream)` Returns a (possibly empty) collection view of the CRLs read from the given input stream `inStream`.
`abstract Collection` | `CertificateFactorySpi.engineGenerateCertificates(InputStream inStream)` Returns a (possibly empty) collection view of the certificates read from the given input stream `inStream`.
`abstract Collection` | `CertificateFactorySpi.engineGenerateCRLs(InputStream inStream)` Returns a (possibly empty) collection view of the CRLs read from the given input stream `inStream`.

Uses of Collection in java.util

Subinterfaces of Collection in java.util
`interface` | `List` An ordered collection (also known as a sequence).
`interface` | `Set` A collection that contains no duplicate elements.
`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 Collection
`class` | `AbstractCollection` This class provides a skeletal implementation of the `Collection` interface, to minimize the effort required to implement this interface.
`class` | `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).
`class` | `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).
`class` | `AbstractSet` This class provides a skeletal implementation of the `Set` interface to minimize the effort required to implement this interface.
`class` | `ArrayList` Resizable-array implementation of the `List` interface.
`class` | `HashSet` This class implements the `Set` interface, backed by a hash table (actually a `HashMap` instance).
`class` | `LinkedList` Linked list implementation of the `List` interface.
`class` | `Stack` The `Stack` class represents a last-in-first-out (LIFO) stack of objects.
`class` | `TreeSet` This class implements the `Set` interface, backed by a `TreeMap` instance.
`class` | `Vector` The `Vector` class implements a growable array of objects.

Methods in java.util that return Collection
`Collection` | `Hashtable.values()` Returns a Collection view of the values contained in this Hashtable.
`Collection` | `AbstractMap.values()` Returns a collection view of the values contained in this map.
`static Collection` | `Collections.unmodifiableCollection(Collection c)` Returns an unmodifiable view of the specified collection.
`static Collection` | `Collections.synchronizedCollection(Collection c)` Returns a synchronized (thread-safe) collection backed by the specified collection.
`Collection` | `TreeMap.values()` Returns a collection view of the values contained in this map.
`Collection` | `HashMap.values()` Returns a collection view of the values contained in this map.
`Collection` | `Map.values()` Returns a collection view of the values contained in this map.

Methods in java.util with parameters of type Collection
`boolean` | `AbstractCollection.containsAll(Collection c)` Returns `true` if this collection contains all of the elements in the specified collection.
`boolean` | `AbstractCollection.addAll(Collection c)` Adds all of the elements in the specified collection to this collection (optional operation).
`boolean` | `AbstractCollection.removeAll(Collection c)` Removes from this collection all of its elements that are contained in the specified collection (optional operation).
`boolean` | `AbstractCollection.retainAll(Collection c)` Retains only the elements in this collection that are contained in the specified collection (optional operation).
`boolean` | `AbstractSet.removeAll(Collection c)` Removes from this set all of its elements that are contained in the specified collection (optional operation).
`boolean` | `TreeSet.addAll(Collection c)` Adds all of the elements in the specified collection to this set.
`boolean` | `AbstractList.addAll(int index, Collection c)` Inserts all of the elements in the specified collection into this list at the specified position (optional operation).
`boolean` | `Vector.containsAll(Collection c)` Returns true if this Vector contains all of the elements in the specified Collection.
`boolean` | `Vector.addAll(Collection c)` Appends all of the elements in the specified Collection to the end of this Vector, in the order that they are returned by the specified Collection's Iterator.
`boolean` | `Vector.removeAll(Collection c)` Removes from this Vector all of its elements that are contained in the specified Collection.
`boolean` | `Vector.retainAll(Collection c)` Retains only the elements in this Vector that are contained in the specified Collection.
`boolean` | `Vector.addAll(int index, Collection c)` Inserts all of the elements in in the specified Collection into this Vector at the specified position.
`boolean` | `Collection.containsAll(Collection c)` Returns `true` if this collection contains all of the elements in the specified collection.
`boolean` | `Collection.addAll(Collection c)` Adds all of the elements in the specified collection to this collection (optional operation).
`boolean` | `Collection.removeAll(Collection c)` Removes all this collection's elements that are also contained in the specified collection (optional operation).
`boolean` | `Collection.retainAll(Collection c)` Retains only the elements in this collection that are contained in the specified collection (optional operation).
`static Object` | `Collections.min(Collection coll)` Returns the minimum element of the given collection, according to the natural ordering of its elements.
`static Object` | `Collections.min(Collection coll, Comparator comp)` Returns the minimum element of the given collection, according to the order induced by the specified comparator.
`static Object` | `Collections.max(Collection coll)` Returns the maximum element of the given collection, according to the natural ordering of its elements.
`static Object` | `Collections.max(Collection coll, Comparator comp)` Returns the maximum element of the given collection, according to the order induced by the specified comparator.
`static Collection` | `Collections.unmodifiableCollection(Collection c)` Returns an unmodifiable view of the specified collection.
`static Collection` | `Collections.synchronizedCollection(Collection c)` Returns a synchronized (thread-safe) collection backed by the specified collection.
`static Enumeration` | `Collections.enumeration(Collection c)` Returns an enumeration over the specified collection.
`boolean` | `AbstractSequentialList.addAll(int index, Collection c)` Inserts all of the elements in in the specified collection into this list at the specified position.
`boolean` | `Set.containsAll(Collection c)` Returns `true` if this set contains all of the elements of the specified collection.
`boolean` | `Set.addAll(Collection c)` Adds all of the elements in the specified collection to this set if they're not already present (optional operation).
`boolean` | `Set.retainAll(Collection c)` Retains only the elements in this set that are contained in the specified collection (optional operation).
`boolean` | `Set.removeAll(Collection c)` Removes from this set all of its elements that are contained in the specified collection (optional operation).
`boolean` | `LinkedList.addAll(Collection c)` Appends all of the elements in the specified collection to the end of this list, in the order that they are returned by the specified collection's iterator.
`boolean` | `LinkedList.addAll(int index, Collection c)` Inserts all of the elements in the specified collection into this list, starting at the specified position.
`boolean` | `List.containsAll(Collection c)` Returns `true` if this list contains all of the elements of the specified collection.
`boolean` | `List.addAll(Collection c)` Appends all of the elements in the specified collection to the end of this list, in the order that they are returned by the specified collection's iterator (optional operation).
`boolean` | `List.addAll(int index, Collection c)` Inserts all of the elements in the specified collection into this list at the specified position (optional operation).
`boolean` | `List.removeAll(Collection c)` Removes from this list all the elements that are contained in the specified collection (optional operation).
`boolean` | `List.retainAll(Collection c)` Retains only the elements in this list that are contained in the specified collection (optional operation).
`boolean` | `ArrayList.addAll(Collection c)` Appends all of the elements in the specified Collection to the end of this list, in the order that they are returned by the specified Collection's Iterator.
`boolean` | `ArrayList.addAll(int index, Collection c)` Inserts all of the elements in the specified Collection into this list, starting at the specified position.

Constructors in java.util with parameters of type Collection
`TreeSet(Collection c)` Constructs a new set containing the elements in the specified collection, sorted according to the elements' natural order.
`Vector(Collection c)` Constructs a vector containing the elements of the specified collection, in the order they are returned by the collection's iterator.
`HashSet(Collection c)` Constructs a new set containing the elements in the specified collection.
`LinkedList(Collection c)` Constructs a list containing the elements of the specified collection, in the order they are returned by the collection's iterator.
`ArrayList(Collection c)` Constructs a list containing the elements of the specified collection, in the order they are returned by the collection's iterator.

Uses of Collection in java.util.jar

Methods in java.util.jar that return Collection
`Collection` | `Attributes.values()` Returns a Collection view of the attribute values contained in this Map.

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