Uses of Interface
java.util.stream.Stream
Package
Description
Provides for system input and output through data streams,
serialization and the file system.
Provides classes that are fundamental to the design of the Java
programming language.
Provides low-level access to memory and functions outside the Java runtime.
Classes to support module descriptors and creating configurations of modules
by means of resolution and service binding.
Provides the classes for implementing networking applications.
HTTP Client and WebSocket APIs
Service-provider classes for the
java.net
package.Defines interfaces and classes for the Java virtual machine to access files,
file attributes, and file systems.
Provides the classes and interfaces for the security framework.
Provides the API for accessing and processing data stored in a
data source (usually a relational database) using the
Java programming language.
The main API for dates, times, instants, and durations.
Contains the collections framework, some internationalization support classes,
a service loader, properties, random number generation, string parsing
and scanning classes, base64 encoding and decoding, a bit array, and
several miscellaneous utility classes.
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.
This package contains classes and interfaces that support a generic API
for random number generation.
Classes for matching character sequences against patterns specified
by regular expressions.
Classes to support functional-style operations on streams of elements, such
as map-reduce transformations on collections.
Provides classes for reading and writing the standard ZIP and GZIP file
formats.
Provides the classes for implementing
XML Catalogs OASIS Standard V1.1, 7 October 2005.
Provides interfaces for creating tools, such as a Read-Eval-Print Loop (REPL),
which interactively evaluate "snippets" of Java programming language code.
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Uses of Stream in java.io
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Uses of Stream in java.lang
Modifier and TypeMethodDescriptionstatic Stream<ProcessHandle>
ProcessHandle.allProcesses()
Returns a snapshot of all processes visible to the current process.Process.children()
Returns a snapshot of the direct children of the process.ProcessHandle.children()
Returns a snapshot of the current direct children of the process.Process.descendants()
Returns a snapshot of the descendants of the process.ProcessHandle.descendants()
Returns a snapshot of the descendants of the process.String.lines()
Returns a stream of lines extracted from this string, separated by line terminators.Returns a stream whose elements are the URLs of all the resources with the given name.Modifier and TypeMethodDescription<T> T
StackWalker.walk
(Function<? super Stream<StackWalker.StackFrame>, ? extends T> function) Applies the given function to the stream ofStackFrame
s for the current thread, traversing from the top frame of the stack, which is the method calling thiswalk
method. -
Uses of Stream in java.lang.foreign
Modifier and TypeMethodDescriptionMemorySegment.elements
(MemoryLayoutPREVIEW elementLayout) Returns a sequentialStream
over disjoint slices (whose size matches that of the specified layout) in this segment. -
Uses of Stream in java.lang.module
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Uses of Stream in java.net
Modifier and TypeMethodDescriptionNetworkInterface.inetAddresses()
Get a Stream of all or a subset of the InetAddresses bound to this network interface.static Stream<NetworkInterface>
NetworkInterface.networkInterfaces()
Returns aStream
of all the interfaces on this machine.NetworkInterface.subInterfaces()
Get a Stream of all subinterfaces (also known as virtual interfaces) attached to this network interface. -
Uses of Stream in java.net.http
Modifier and TypeMethodDescriptionstatic HttpResponse.BodyHandler<Stream<String>>
HttpResponse.BodyHandlers.ofLines()
Returns aBodyHandler<Stream<String>>
that returns aBodySubscriber
<Stream<String>>
obtained fromBodySubscribers.ofLines(charset)
.static HttpResponse.BodySubscriber<Stream<String>>
Returns aBodySubscriber
which streams the response body as aStream
<String>
, where each string in the stream corresponds to a line as defined byBufferedReader.lines()
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Uses of Stream in java.net.spi
Modifier and TypeMethodDescriptionInetAddressResolver.lookupByName
(String host, InetAddressResolver.LookupPolicy lookupPolicy) Given the name of a host, returns a stream of IP addresses of the requested address family associated with a provided hostname. -
Uses of Stream in java.nio.file
Modifier and TypeMethodDescriptionFiles.find
(Path start, int maxDepth, BiPredicate<Path, BasicFileAttributes> matcher, FileVisitOption... options) Return aStream
that is lazily populated withPath
by searching for files in a file tree rooted at a given starting file.Read all lines from a file as aStream
.Read all lines from a file as aStream
.Return a lazily populatedStream
, the elements of which are the entries in the directory.Files.walk
(Path start, int maxDepth, FileVisitOption... options) Return aStream
that is lazily populated withPath
by walking the file tree rooted at a given starting file.Files.walk
(Path start, FileVisitOption... options) Return aStream
that is lazily populated withPath
by walking the file tree rooted at a given starting file. -
Uses of Stream in java.security
Modifier and TypeMethodDescriptionPermissionCollection.elementsAsStream()
Returns a stream of all the Permission objects in the collection. -
Uses of Stream in java.sql
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Uses of Stream in java.time
Modifier and TypeMethodDescriptionLocalDate.datesUntil
(LocalDate endExclusive) Returns a sequential ordered stream of dates.LocalDate.datesUntil
(LocalDate endExclusive, Period step) Returns a sequential ordered stream of dates by given incremental step. -
Uses of Stream in java.util
Modifier and TypeMethodDescriptionReturns a stream of match results that match the provided pattern string.Returns a stream of match results from this scanner.Collection.parallelStream()
Returns a possibly parallelStream
with this collection as its source.SplittableRandom.splits()
Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator.SplittableGenerator
interface.SplittableRandom.splits
(long streamSize) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator.SplittableGenerator
interface.SplittableRandom.splits
(long streamSize, RandomGenerator.SplittableGenerator source) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator.SplittableGenerator
interface.SplittableRandom.splits
(RandomGenerator.SplittableGenerator source) Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator.SplittableGenerator
interface.static <T> Stream<T>
Arrays.stream
(T[] array) Returns a sequentialStream
with the specified array as its source.static <T> Stream<T>
Arrays.stream
(T[] array, int startInclusive, int endExclusive) Returns a sequentialStream
with the specified range of the specified array as its source.Collection.stream()
Returns a sequentialStream
with this collection as its source.Optional.stream()
If a value is present, returns a sequentialStream
containing only that value, otherwise returns an emptyStream
.ServiceLoader.stream()
Returns a stream to lazily load available providers of this loader's service.Scanner.tokens()
Returns a stream of delimiter-separated tokens from this scanner. -
Uses of Stream in java.util.jar
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Uses of Stream in java.util.random
Modifier and TypeMethodDescriptionstatic Stream<RandomGeneratorFactory<RandomGenerator>>
RandomGeneratorFactory.all()
Returns a non-empty stream of availableRandomGeneratorFactory(s)
.RandomGenerator.ArbitrarilyJumpableGenerator.jumps
(double distance) Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator.ArbitrarilyJumpableGenerator
interface, produced by jumping copies of this generator by different integer multiples of the specified jump distance.RandomGenerator.ArbitrarilyJumpableGenerator.jumps
(long streamSize, double distance) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator.ArbitrarilyJumpableGenerator
interface, produced by jumping copies of this generator by different integer multiples of the specified jump distance.default Stream<RandomGenerator>
RandomGenerator.JumpableGenerator.jumps()
Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator
interface.default Stream<RandomGenerator>
RandomGenerator.JumpableGenerator.jumps
(long streamSize) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator
interface.default Stream<RandomGenerator.JumpableGenerator>
RandomGenerator.LeapableGenerator.leaps()
Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator.JumpableGenerator
interface.default Stream<RandomGenerator.JumpableGenerator>
RandomGenerator.LeapableGenerator.leaps
(long streamSize) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator.JumpableGenerator
interface.default Stream<RandomGenerator>
RandomGenerator.JumpableGenerator.rngs()
Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator
interface.default Stream<RandomGenerator>
RandomGenerator.JumpableGenerator.rngs
(long streamSize) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator
interface.default Stream<RandomGenerator>
RandomGenerator.SplittableGenerator.rngs()
Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator
interface.default Stream<RandomGenerator>
RandomGenerator.SplittableGenerator.rngs
(long streamSize) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator
interface.RandomGenerator.StreamableGenerator.rngs()
Returns an effectively unlimited stream of objects, each of which implements theRandomGenerator
interface.default Stream<RandomGenerator>
RandomGenerator.StreamableGenerator.rngs
(long streamSize) Returns an effectively unlimited stream of objects, each of which implements theRandomGenerator
interface.RandomGenerator.SplittableGenerator.splits()
Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator.SplittableGenerator
interface.RandomGenerator.SplittableGenerator.splits
(long streamSize) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator.SplittableGenerator
interface.RandomGenerator.SplittableGenerator.splits
(long streamSize, RandomGenerator.SplittableGenerator source) Returns a stream producing the givenstreamSize
number of new pseudorandom number generators, each of which implements theRandomGenerator.SplittableGenerator
interface.RandomGenerator.SplittableGenerator.splits
(RandomGenerator.SplittableGenerator source) Returns an effectively unlimited stream of new pseudorandom number generators, each of which implements theRandomGenerator.SplittableGenerator
interface. -
Uses of Stream in java.util.regex
Modifier and TypeMethodDescriptionMatcher.results()
Returns a stream of match results for each subsequence of the input sequence that matches the pattern.Pattern.splitAsStream
(CharSequence input) Creates a stream from the given input sequence around matches of this pattern. -
Uses of Stream in java.util.stream
Modifier and TypeMethodDescriptionDoubleStream.boxed()
Returns aStream
consisting of the elements of this stream, boxed toDouble
.IntStream.boxed()
Returns aStream
consisting of the elements of this stream, each boxed to anInteger
.LongStream.boxed()
Returns aStream
consisting of the elements of this stream, each boxed to aLong
.Stream.Builder.build()
Builds the stream, transitioning this builder to the built state.static <T> Stream<T>
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.distinct()
Returns a stream consisting of the distinct elements (according toObject.equals(Object)
) of this stream.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>
Stream.empty()
Returns an empty sequentialStream
.Returns a stream consisting of the elements of this stream that match the given predicate.<R> Stream<R>
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>
Returns an infinite sequential unordered stream where each element is generated by the providedSupplier
.static <T> Stream<T>
Stream.iterate
(T seed, Predicate<? super T> hasNext, UnaryOperator<T> next) Returns a sequential orderedStream
produced by iterative application of the givennext
function to an initial element, conditioned on satisfying the givenhasNext
predicate.static <T> Stream<T>
Stream.iterate
(T seed, UnaryOperator<T> f) Returns an infinite sequential orderedStream
produced by iterative application of a functionf
to an initial elementseed
, producing aStream
consisting ofseed
,f(seed)
,f(f(seed))
, etc.Stream.limit
(long maxSize) Returns a stream consisting of the elements of this stream, truncated to be no longer thanmaxSize
in length.<R> Stream<R>
Returns a stream consisting of the results of applying the given function to the elements of this stream.default <R> Stream<R>
Stream.mapMulti
(BiConsumer<? super T, ? super Consumer<R>> mapper) Returns a stream consisting of the results of replacing each element of this stream with multiple elements, specifically zero or more elements.<U> Stream<U>
DoubleStream.mapToObj
(DoubleFunction<? extends U> mapper) Returns an object-valuedStream
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-valuedStream
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-valuedStream
consisting of the results of applying the given function to the elements of this stream.static <T> Stream<T>
Stream.of
(T t) Returns a sequentialStream
containing a single element.static <T> Stream<T>
Stream.of
(T... values) Returns a sequential ordered stream whose elements are the specified values.static <T> Stream<T>
Stream.ofNullable
(T t) Returns a sequentialStream
containing a single element, if non-null, otherwise returns an emptyStream
.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.skip
(long n) Returns a stream consisting of the remaining elements of this stream after discarding the firstn
elements of the stream.Stream.sorted()
Returns a stream consisting of the elements of this stream, sorted according to natural order.Stream.sorted
(Comparator<? super T> comparator) Returns a stream consisting of the elements of this stream, sorted according to the providedComparator
.static <T> Stream<T>
StreamSupport.stream
(Supplier<? extends Spliterator<T>> supplier, int characteristics, boolean parallel) Creates a new sequential or parallelStream
from aSupplier
ofSpliterator
.static <T> Stream<T>
StreamSupport.stream
(Spliterator<T> spliterator, boolean parallel) Creates a new sequential or parallelStream
from aSpliterator
.Returns, if this stream is ordered, a stream consisting of the longest prefix of elements taken from this stream that match the given predicate.Modifier and TypeMethodDescriptionstatic <T> Stream<T>
Creates a lazily concatenated stream whose elements are all the elements of the first stream followed by all the elements of the second stream.Modifier and TypeMethodDescription<R> Stream<R>
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 aCollector
accepting elements of typeU
to one accepting elements of typeT
by applying a flat mapping function to each input element before accumulation. -
Uses of Stream in java.util.zip
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Uses of Stream in javax.xml.catalog
Modifier and TypeMethodDescriptionCatalog.catalogs()
Returns a sequential Stream of alternative Catalogs specified using thenextCatalog
entries in the current catalog, and as the input of catalog files excluding the current catalog (that is, the first in the input list) when the Catalog object is created by theCatalogManager
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Uses of Stream in jdk.jshell
Modifier and TypeMethodDescriptionJShell.diagnostics
(Snippet snippet) Return the diagnostics of the most recent evaluation of the snippet.JShell.imports()
Returns the active import snippets.JShell.methods()
Returns the active method snippets.JShell.snippets()
Return all snippets.JShell.types()
Returns the active type declaration (class, interface, annotation type, and enum) snippets.JShell.unresolvedDependencies
(DeclarationSnippet snippet) ForRECOVERABLE_DEFINED
orRECOVERABLE_NOT_DEFINED
declarations, the names of current unresolved dependencies for the snippet.JShell.variables()
Returns the active variable snippets.