Interface IntStream

All Superinterfaces:

AutoCloseable, BaseStream<Integer, IntStream>

public interface IntStream
extends BaseStream<Integer, IntStream>

A sequence of int values to which operations are applied one stage at a time, evaluated lazily, one element at a time, when a terminal operation asks for them.

Streams here are sequential: parallel() answers the same stream, which the JDK allows a parallel stream to be.

Method Summary

Modifier and Type	Method	Description
boolean	allMatch(IntPredicate predicate)
boolean	anyMatch(IntPredicate predicate)
DoubleStream	asDoubleStream()
LongStream	asLongStream()
OptionalDouble	average()
Stream<Integer>	boxed()
<R> R	collect(Supplier<R> supplier, ObjIntConsumer<R> accumulator, BiConsumer<R,R> combiner)
static IntStream	concat(IntStream a, IntStream b)	The elements of a, then those of b.
long	count()
IntStream	distinct()
IntStream	dropWhile(IntPredicate predicate)
static IntStream	empty()
IntStream	filter(IntPredicate predicate)
OptionalInt	findAny()
OptionalInt	findFirst()
IntStream	flatMap(IntFunction<? extends IntStream> mapper)
void	forEach(IntConsumer action)
void	forEachOrdered(IntConsumer action)
static IntStream	generate(IntSupplier s)	The values s answers, one call per element, without end.
static IntStream	iterate(int seed, IntPredicate hasNext, IntUnaryOperator next)	As iterate(int, IntUnaryOperator), ending before the first value hasNext refuses.
static IntStream	iterate(int seed, IntUnaryOperator f)	seed, then f applied to it, then f applied to that, without end.
PrimitiveIterator.OfInt	iterator()
IntStream	limit(long maxSize)
IntStream	map(IntUnaryOperator mapper)
DoubleStream	mapToDouble(IntToDoubleFunction mapper)
LongStream	mapToLong(IntToLongFunction mapper)
<U> Stream<U>	mapToObj(IntFunction<? extends U> mapper)
OptionalInt	max()
OptionalInt	min()
boolean	noneMatch(IntPredicate predicate)
static IntStream	of(int value)
static IntStream	of(int... values)
IntStream	parallel()	Declared again with this type; see sequential().
IntStream	peek(IntConsumer action)
static IntStream	range(int startInclusive, int endExclusive)	The values from startInclusive up to, not including, endExclusive, in steps of one.
static IntStream	rangeClosed(int startInclusive, int endInclusive)	The values from startInclusive up to and including endInclusive, in steps of one.
int	reduce(int identity, IntBinaryOperator op)
OptionalInt	reduce(IntBinaryOperator op)
IntStream	sequential()	Declared again with this type, as the JDK does: a call compiled against the JDK names IntStream.sequential() answering IntStream, and the method inherited from BaseStream answers its type variable, which is another descriptor.
IntStream	skip(long n)
IntStream	sorted()
int	sum()
IntSummaryStatistics	summaryStatistics()
IntStream	takeWhile(IntPredicate predicate)
int[]	toArray()

Methods inherited from interface BaseStream

close, isParallel, onClose, unordered

Method Details

sequential

IntStream sequential()

Declared again with this type, as the JDK does: a call compiled against the JDK names IntStream.sequential() answering IntStream, and the method inherited from BaseStream answers its type variable, which is another descriptor.

Specified by:

sequential in interface BaseStream<Integer, IntStream>

parallel

IntStream parallel()

Declared again with this type; see sequential().

Specified by:

parallel in interface BaseStream<Integer, IntStream>

filter

IntStream filter(IntPredicate predicate)

map

IntStream map(IntUnaryOperator mapper)

mapToObj

<U> Stream<U> mapToObj(IntFunction<? extends U> mapper)

mapToLong

LongStream mapToLong(IntToLongFunction mapper)

mapToDouble

DoubleStream mapToDouble(IntToDoubleFunction mapper)

flatMap

IntStream flatMap(IntFunction<? extends IntStream> mapper)

distinct

IntStream distinct()

sorted

IntStream sorted()

peek

IntStream peek(IntConsumer action)

limit

IntStream limit(long maxSize)

skip

IntStream skip(long n)

takeWhile

IntStream takeWhile(IntPredicate predicate)

dropWhile

IntStream dropWhile(IntPredicate predicate)

forEach

void forEach(IntConsumer action)

forEachOrdered

void forEachOrdered(IntConsumer action)

toArray

int[] toArray()

reduce

int reduce(int identity,
 IntBinaryOperator op)

reduce

OptionalInt reduce(IntBinaryOperator op)

collect

<R> R collect(Supplier<R> supplier,
 ObjIntConsumer<R> accumulator,
 BiConsumer<R,R> combiner)

sum

int sum()

min

OptionalInt min()

max

OptionalInt max()

count

long count()

average

OptionalDouble average()

summaryStatistics

IntSummaryStatistics summaryStatistics()

anyMatch

boolean anyMatch(IntPredicate predicate)

allMatch

boolean allMatch(IntPredicate predicate)

noneMatch

boolean noneMatch(IntPredicate predicate)

findFirst

OptionalInt findFirst()

findAny

OptionalInt findAny()

asLongStream

LongStream asLongStream()

asDoubleStream

DoubleStream asDoubleStream()

boxed

Stream<Integer> boxed()

iterator

PrimitiveIterator.OfInt iterator()

Specified by:

iterator in interface BaseStream<Integer, IntStream>

empty

static IntStream empty()

of

static IntStream of(int value)

of

static IntStream of(int... values)

iterate

static IntStream iterate(int seed,
 IntUnaryOperator f)

seed, then f applied to it, then f applied to that, without end.

iterate

static IntStream iterate(int seed,
 IntPredicate hasNext,
 IntUnaryOperator next)

As iterate(int, IntUnaryOperator), ending before the first value hasNext refuses.

generate

static IntStream generate(IntSupplier s)

The values s answers, one call per element, without end.

range

static IntStream range(int startInclusive,
 int endExclusive)

The values from startInclusive up to, not including, endExclusive, in steps of one. Empty when startInclusive is not below endExclusive.

rangeClosed

static IntStream rangeClosed(int startInclusive,
 int endInclusive)

The values from startInclusive up to and including endInclusive, in steps of one. Empty when startInclusive is above endInclusive.

concat

static IntStream concat(IntStream a,
 IntStream b)

The elements of a, then those of b. Closing the result closes both.