java.util

public Interface SequencedSet<E>

Known Direct Subinterfaces

extends SequencedCollection<E>, Set<E>java.util.SortedSet

Known Direct Implementers

java.util.Collections.UnmodifiableSequencedSet, java.util.Collections.SequencedSetFromMap, java.util.LinkedHashMap.LinkedKeySet, java.util.LinkedHashMap.LinkedEntrySet, java.util.LinkedHashSet

Type Parameters

<E>: the type of elements in this sequenced set

A collection that is both a SequencedCollection and a Set. As such, it can be thought of either as a Set that also has a well-defined encounter order, or as a SequencedCollection that also has unique elements.

This interface has the same requirements on the equals and hashCode methods as defined by Set.equals and Set.hashCode. Thus, a Set and a SequencedSet will compare equals if and only if they have equal elements, irrespective of ordering.

SequencedSet defines the reversed method, which provides a reverse-ordered view of this set. The only difference from the SequencedCollection.reversed method is that the return type of SequencedSet.reversed is SequencedSet.

This class is a member of the Java Collections Framework.

Since: 21

Method Summary

Modifier and Type	Method and Description
public SequencedSet<E>	Returns: a reverse-ordered view of this collection, as a `SequencedSet` reversed() Redeclares java.util.SequencedCollection.reversed. Returns a reverse-ordered view of this collection.

Inherited from java.util.SequencedCollection:: addFirst addLast getFirst getLast removeFirst removeLast
Inherited from java.util.Set:: add addAll clear contains containsAll copyOf equals hashCode isEmpty iterator of of of of of of of of of of of of remove removeAll retainAll size spliterator toArray toArray

Method Detail

reversed back to summary

reversed	back to summary
public SequencedSet<E> reversed() Redeclares java.util.SequencedCollection.reversed. Doc from java.util.SequencedCollection.reversed. Returns a reverse-ordered view of this collection. The encounter order of elements in the returned view is the inverse of the encounter order of elements in this collection. The reverse ordering affects all order-sensitive operations, including those on the view collections of the returned view. If the collection implementation permits modifications to this view, the modifications "write through" to the underlying collection. Changes to the underlying collection might or might not be visible in this reversed view, depending upon the implementation. Returns:SequencedSet<E> a reverse-ordered view of this collection, as a `SequencedSet`

public SequencedSet<E> reversed()

Redeclares java.util.SequencedCollection.reversed.

Doc from java.util.SequencedCollection.reversed.

Returns a reverse-ordered view of this collection. The encounter order of elements in the returned view is the inverse of the encounter order of elements in this collection. The reverse ordering affects all order-sensitive operations, including those on the view collections of the returned view. If the collection implementation permits modifications to this view, the modifications "write through" to the underlying collection. Changes to the underlying collection might or might not be visible in this reversed view, depending upon the implementation.

Returns:SequencedSet<E>: a reverse-ordered view of this collection, as a SequencedSet