boolean allMatch(LongPredicate predicate)
Returns whether all elements of this stream match the provided predicate.
boolean anyMatch(LongPredicate predicate)
Returns whether any elements of this stream match the provided predicate.
DoubleStream asDoubleStream()
Returns a DoubleStream consisting of the elements of this stream, converted to double.
OptionalDouble average()
Returns an OptionalDouble describing the arithmetic mean of elements of this stream, or an empty optional if this stream is empty.
Stream<Long> boxed()
Returns a Stream consisting of the elements of this stream, each boxed to a Long.
static LongStream.Builder builder()
Returns a builder for a LongStream.
<R> R collect(Supplier<R> supplier, ObjLongConsumer<R> accumulator, BiConsumer<R,R> combiner) static LongStream concat(LongStream a, LongStream 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.
long count()
Returns the count of elements in this stream.
LongStream distinct()
Returns a stream consisting of the distinct elements of this stream.
static LongStream empty()
Returns an empty sequential LongStream.
LongStream filter(LongPredicate predicate)
Returns a stream consisting of the elements of this stream that match the given predicate.
OptionalLong findAny()
Returns an
OptionalLong
describing some element of the stream, or an empty
OptionalLong
if the stream is empty.
OptionalLong findFirst()
Returns an
OptionalLong
describing the first element of this stream, or an empty
OptionalLong
if the stream is empty.
LongStream flatMap(LongFunction<? extends LongStream> 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.
void forEach(LongConsumer action)
Performs an action for each element of this stream.
void forEachOrdered(LongConsumer action)
Performs an action for each element of this stream, guaranteeing that each element is processed in encounter order for streams that have a defined encounter order.
static LongStream generate(LongSupplier s)
Returns an infinite sequential unordered stream where each element is generated by the provided LongSupplier.
static LongStream iterate(long seed, LongUnaryOperator f)
Returns an infinite sequential ordered LongStream 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.
PrimitiveIterator.OfLong iterator()
Returns an iterator for the elements of this stream.
LongStream limit(long maxSize)
Returns a stream consisting of the elements of this stream, truncated to be no longer than maxSize in length.
LongStream map(LongUnaryOperator mapper)
Returns a stream consisting of the results of applying the given function to the elements of this stream.
DoubleStream mapToDouble(LongToDoubleFunction mapper)
Returns a DoubleStream consisting of the results of applying the given function to the elements of this stream.
IntStream mapToInt(LongToIntFunction mapper)
Returns an IntStream consisting of the results of applying the given function to the elements of this stream.
<U> Stream<U> 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.
OptionalLong max()
Returns an OptionalLong describing the maximum element of this stream, or an empty optional if this stream is empty.
OptionalLong min()
Returns an OptionalLong describing the minimum element of this stream, or an empty optional if this stream is empty.
boolean noneMatch(LongPredicate predicate)
Returns whether no elements of this stream match the provided predicate.
static LongStream of(long... values)
Returns a sequential ordered stream whose elements are the specified values.
static LongStream of(long t)
Returns a sequential LongStream containing a single element.
LongStream parallel()
Returns an equivalent stream that is parallel.
LongStream peek(LongConsumer 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.
static LongStream range(long startInclusive, long endExclusive)
Returns a sequential ordered LongStream from startInclusive (inclusive) to endExclusive (exclusive) by an incremental step of 1.
static LongStream rangeClosed(long startInclusive, long endInclusive)
Returns a sequential ordered LongStream from startInclusive (inclusive) to endInclusive (inclusive) by an incremental step of 1.
OptionalLong reduce(LongBinaryOperator op)
Performs a
reductionon the elements of this stream, using an
associativeaccumulation function, and returns an
OptionalLong
describing the reduced value, if any.
long reduce(long identity, LongBinaryOperator op)
Performs a
reductionon the elements of this stream, using the provided identity value and an
associativeaccumulation function, and returns the reduced value.
LongStream sequential()
Returns an equivalent stream that is sequential.
LongStream skip(long n)
Returns a stream consisting of the remaining elements of this stream after discarding the first n elements of the stream.
LongStream sorted()
Returns a stream consisting of the elements of this stream in sorted order.
Spliterator.OfLong spliterator()
Returns a spliterator for the elements of this stream.
long sum()
Returns the sum of elements in this stream.
LongSummaryStatistics summaryStatistics()
Returns a LongSummaryStatistics describing various summary data about the elements of this stream.
long[] toArray()
Returns an array containing the elements of this stream.
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