Uses of Interface
java8.util.stream.Stream

Packages that use Stream

Package	Description
java8.util	Provides some of the new java.util classes and implementations of static and default interface methods added in Java 8.
java8.util.stream	Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.

Uses of Stream in java8.util

Methods in java8.util that return Stream

Modifier and Type	Method and Description
Stream<T>	Optional.stream() If a value is present, returns a sequential Stream containing only that value, otherwise returns an empty Stream.
static <T> Stream<T>	J8Arrays.stream(T[] array) Returns a sequential Stream with the specified array as its source.
static <T> Stream<T>	J8Arrays.stream(T[] array, int startInclusive, int endExclusive) Returns a sequential Stream with the specified range of the specified array as its source.

Uses of Stream in java8.util.stream

Methods in java8.util.stream that return Stream

Modifier and Type	Method and Description
Stream<Long>	LongStream.boxed() Returns a Stream consisting of the elements of this stream, each boxed to a Long.
Stream<Integer>	IntStream.boxed() Returns a Stream consisting of the elements of this stream, each boxed to an Integer.
Stream<Double>	DoubleStream.boxed() Returns a Stream consisting of the elements of this stream, boxed to Double.
Stream<T>	Stream.Builder.build() Builds the stream, transitioning this builder to the built state.
static <T> Stream<T>	RefStreams.concat(Stream<? extends T> a, Stream<? extends T> b) Creates a lazily concatenated Stream whose elements are all the elements of the first stream followed by all the elements of the second stream.
Stream<T>	Stream.distinct() Returns a stream consisting of the distinct elements (according to Object.equals(Object)) of this stream.
Stream<T>	Stream.dropWhile(Predicate<? super T> predicate) Returns, if this stream is ordered, a stream consisting of the remaining elements of this stream after dropping the longest prefix of elements that match the given predicate.
static <T> Stream<T>	RefStreams.dropWhile(Stream<? extends T> stream, Predicate<? super T> predicate) Returns, if the passed stream is ordered, a stream consisting of the remaining elements of the passed stream after dropping the longest prefix of elements that match the given predicate.
static <T> Stream<T>	RefStreams.empty() Returns an empty sequential Stream.
Stream<T>	Stream.filter(Predicate<? super T> predicate) Returns a stream consisting of the elements of this stream that match the given predicate.
<R> Stream<R>	Stream.flatMap(Function<? super T,? extends Stream<? extends R>> mapper) Returns a stream consisting of the results of replacing each element of this stream with the contents of a mapped stream produced by applying the provided mapping function to each element.
static <T> Stream<T>	RefStreams.generate(Supplier<? extends T> s) Returns an infinite sequential unordered Stream where each element is generated by the provided Supplier.
static <T,S extends T> Stream<T>	RefStreams.iterate(S seed, Predicate<S> predicate, UnaryOperator<S> f) Returns a sequential ordered Stream produced by iterative application of a function to an initial element, conditioned on satisfying the supplied predicate.
static <T,S extends T> Stream<T>	RefStreams.iterate(S seed, UnaryOperator<S> f) Returns an infinite sequential ordered Stream produced by iterative application of a function f to an initial element seed, producing a Stream consisting of seed, f(seed), f(f(seed)), etc.
Stream<T>	Stream.limit(long maxSize) Returns a stream consisting of the elements of this stream, truncated to be no longer than maxSize in length.
<R> Stream<R>	Stream.map(Function<? super T,? extends R> mapper) Returns a stream consisting of the results of applying the given function to the elements of this stream.
<U> Stream<U>	DoubleStream.mapToObj(DoubleFunction<? extends U> mapper) Returns an object-valued Stream consisting of the results of applying the given function to the elements of this stream.
<U> Stream<U>	IntStream.mapToObj(IntFunction<? extends U> mapper) Returns an object-valued Stream consisting of the results of applying the given function to the elements of this stream.
<U> Stream<U>	LongStream.mapToObj(LongFunction<? extends U> mapper) Returns an object-valued Stream consisting of the results of applying the given function to the elements of this stream.
static <T> Stream<T>	RefStreams.of(T... values) Returns a sequential ordered Stream whose elements are the specified values.
static <T> Stream<T>	RefStreams.of(T t) Returns a sequential Stream containing a single element.
static <T> Stream<T>	RefStreams.ofNullable(T t) Returns a sequential Stream containing a single element, if non-null, otherwise returns an empty Stream.
static <T> Stream<T>	StreamSupport.parallelStream(Collection<? extends T> c) Creates a new possibly parallel Stream using either the given collection's Collection.iterator() as the source of elements for an internally created Spliterator which will report the collection's Collection.size() as its initial size or a specialized Spliterator implementation (effectively the same one that Java 8 uses) if the passed Collection is one of the types listed below.
Stream<T>	Stream.peek(Consumer<? super T> action) Returns a stream consisting of the elements of this stream, additionally performing the provided action on each element as elements are consumed from the resulting stream.
Stream<T>	Stream.skip(long n) Returns a stream consisting of the remaining elements of this stream after discarding the first n elements of the stream.
Stream<T>	Stream.sorted() Returns a stream consisting of the elements of this stream, sorted according to natural order.
Stream<T>	Stream.sorted(Comparator<? super T> comparator) Returns a stream consisting of the elements of this stream, sorted according to the provided Comparator.
static <T> Stream<T>	StreamSupport.stream(Collection<? extends T> c) Creates a new sequential Stream using either the given collection's Collection.iterator() as the source of elements for an internally created Spliterator which will report the collection's Collection.size() as its initial size or a specialized Spliterator implementation (effectively the same one that Java 8 uses) if the passed Collection is one of the types listed below.
static <T> Stream<T>	StreamSupport.stream(Collection<? extends T> c, int characteristics) Creates a new sequential Stream using the given collection's Collection.iterator() as the source of elements for an internally created Spliterator which will report the collection's Collection.size() as its initial size.
static <T> Stream<T>	StreamSupport.stream(Collection<? extends T> c, int characteristics, boolean parallel) Creates a new sequential or parallel Stream using the given collection's Collection.iterator() as the source of elements for an internally created Spliterator which will report the collection's Collection.size() as its initial size.
static <T> Stream<T>	StreamSupport.stream(Spliterator<T> spliterator, boolean parallel) Creates a new sequential or parallel Stream from a Spliterator.
static <T> Stream<T>	StreamSupport.stream(Supplier<? extends Spliterator<T>> supplier, int characteristics, boolean parallel) Creates a new sequential or parallel Stream from a Supplier of Spliterator.
Stream<T>	Stream.takeWhile(Predicate<? super T> predicate) Returns, if this stream is ordered, a stream consisting of the longest prefix of elements taken from this stream that match the given predicate.
static <T> Stream<T>	RefStreams.takeWhile(Stream<? extends T> stream, Predicate<? super T> predicate) Returns, if the passed stream is ordered, a stream consisting of the longest prefix of elements taken from the passed stream that match the given predicate.

Methods in java8.util.stream with parameters of type Stream

Modifier and Type	Method and Description
static <T> Stream<T>	RefStreams.concat(Stream<? extends T> a, Stream<? extends T> b) Creates a lazily concatenated Stream whose elements are all the elements of the first stream followed by all the elements of the second stream.
static <T> Stream<T>	RefStreams.concat(Stream<? extends T> a, Stream<? extends T> b) Creates a lazily concatenated Stream whose elements are all the elements of the first stream followed by all the elements of the second stream.
static <T> Stream<T>	RefStreams.dropWhile(Stream<? extends T> stream, Predicate<? super T> predicate) Returns, if the passed stream is ordered, a stream consisting of the remaining elements of the passed stream after dropping the longest prefix of elements that match the given predicate.
static <T> Stream<T>	RefStreams.takeWhile(Stream<? extends T> stream, Predicate<? super T> predicate) Returns, if the passed stream is ordered, a stream consisting of the longest prefix of elements taken from the passed stream that match the given predicate.

Method parameters in java8.util.stream with type arguments of type Stream

Modifier and Type	Method and Description
<R> Stream<R>	Stream.flatMap(Function<? super T,? extends Stream<? extends R>> mapper) Returns a stream consisting of the results of replacing each element of this stream with the contents of a mapped stream produced by applying the provided mapping function to each element.
static <T,U,A,R> Collector<T,?,R>	Collectors.flatMapping(Function<? super T,? extends Stream<? extends U>> mapper, Collector<? super U,A,R> downstream) Adapts a Collector accepting elements of type U to one accepting elements of type T by applying a flat mapping function to each input element before accumulation.