Uses of Interface
java.util.stream.Stream

Packages that use 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.
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
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.
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.
  • Uses of Stream in java.io

    Methods in java.io that return Stream
    Modifier and Type
    Method
    Description
    BufferedReader.lines()
    Returns a Stream, the elements of which are lines read from this BufferedReader.
  • Uses of Stream in java.lang

    Methods in java.lang that return Stream
    Modifier and Type
    Method
    Description
    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.
    ClassLoader.resources​(String name)
    Returns a stream whose elements are the URLs of all the resources with the given name.
    Method parameters in java.lang with type arguments of type Stream
    Modifier and Type
    Method
    Description
    <T> T
    StackWalker.walk​(Function<? super Stream<StackWalker.StackFrame>,​? extends T> function)
    Applies the given function to the stream of StackFrames for the current thread, traversing from the top frame of the stack, which is the method calling this walk method.
  • Uses of Stream in java.lang.module

    Methods in java.lang.module that return Stream
    Modifier and Type
    Method
    Description
    ModuleReader.list()
    Lists the contents of the module, returning a stream of elements that are the names of all resources in the module.
  • Uses of Stream in java.net

    Methods in java.net that return Stream
    Modifier and Type
    Method
    Description
    NetworkInterface.inetAddresses()
    Get a Stream of all or a subset of the InetAddresses bound to this network interface.
    NetworkInterface.networkInterfaces()
    Returns a Stream 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

    Methods in java.net.http that return types with arguments of type Stream
    Modifier and Type
    Method
    Description
    HttpResponse.BodyHandlers.ofLines()
    Returns a BodyHandler<Stream<String>> that returns a BodySubscriber<Stream<String>> obtained from BodySubscribers.ofLines(charset).
    HttpResponse.BodySubscribers.ofLines​(Charset charset)
    Returns a BodySubscriber which streams the response body as a Stream<String>, where each string in the stream corresponds to a line as defined by BufferedReader.lines().
  • Uses of Stream in java.nio.file

    Methods in java.nio.file that return Stream
    Modifier and Type
    Method
    Description
    static Stream<Path>
    Files.find​(Path start, int maxDepth, BiPredicate<Path,​BasicFileAttributes> matcher, FileVisitOption... options)
    Return a Stream that is lazily populated with Path by searching for files in a file tree rooted at a given starting file.
    static Stream<String>
    Files.lines​(Path path)
    Read all lines from a file as a Stream.
    static Stream<String>
    Files.lines​(Path path, Charset cs)
    Read all lines from a file as a Stream.
    static Stream<Path>
    Files.list​(Path dir)
    Return a lazily populated Stream, the elements of which are the entries in the directory.
    static Stream<Path>
    Files.walk​(Path start, int maxDepth, FileVisitOption... options)
    Return a Stream that is lazily populated with Path by walking the file tree rooted at a given starting file.
    static Stream<Path>
    Files.walk​(Path start, FileVisitOption... options)
    Return a Stream that is lazily populated with Path by walking the file tree rooted at a given starting file.
  • Uses of Stream in java.security

    Methods in java.security that return Stream
    Modifier and Type
    Method
    Description
    PermissionCollection.elementsAsStream()
    Returns a stream of all the Permission objects in the collection.
  • Uses of Stream in java.sql

    Methods in java.sql that return Stream
    Modifier and Type
    Method
    Description
    static Stream<Driver>
    DriverManager.drivers()
    Retrieves a Stream with all of the currently loaded JDBC drivers to which the current caller has access.
  • Uses of Stream in java.time

    Methods in java.time that return Stream
    Modifier and Type
    Method
    Description
    LocalDate.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

    Methods in java.util that return Stream
    Modifier and Type
    Method
    Description
    Scanner.findAll​(String patString)
    Returns a stream of match results that match the provided pattern string.
    Scanner.findAll​(Pattern pattern)
    Returns a stream of match results from this scanner.
    default Stream<E>
    Collection.parallelStream()
    Returns a possibly parallel Stream with this collection as its source.
    static <T> Stream<T>
    Arrays.stream​(T[] array)
    Returns a sequential Stream with the specified array as its source.
    static <T> Stream<T>
    Arrays.stream​(T[] array, int startInclusive, int endExclusive)
    Returns a sequential Stream with the specified range of the specified array as its source.
    default Stream<E>
    Collection.stream()
    Returns a sequential Stream with this collection as its source.
    Optional.stream()
    If a value is present, returns a sequential Stream containing only that value, otherwise returns an empty Stream.
    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

    Methods in java.util.jar that return Stream
    Modifier and Type
    Method
    Description
    JarFile.stream()
    Returns an ordered Stream over the jar file entries.
    JarFile.versionedStream()
    Returns a Stream of the versioned jar file entries.
  • Uses of Stream in java.util.regex

    Methods in java.util.regex that return Stream
    Modifier and Type
    Method
    Description
    Matcher.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

    Methods in java.util.stream that return Stream
    Modifier and Type
    Method
    Description
    DoubleStream.boxed()
    Returns a Stream consisting of the elements of this stream, boxed to Double.
    IntStream.boxed()
    Returns a Stream consisting of the elements of this stream, each boxed to an Integer.
    LongStream.boxed()
    Returns a Stream consisting of the elements of this stream, each boxed to a Long.
    Stream.Builder.build()
    Builds the stream, transitioning this builder to the built state.
    static <T> Stream<T>
    Stream.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.distinct()
    Returns a stream consisting of the distinct elements (according to Object.equals(Object)) of this stream.
    default 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>
    Stream.empty()
    Returns an empty sequential Stream.
    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>
    Stream.generate​(Supplier<? extends T> s)
    Returns an infinite sequential unordered stream where each element is generated by the provided Supplier.
    static <T> Stream<T>
    Stream.iterate​(T seed, Predicate<? super T> hasNext, UnaryOperator<T> next)
    Returns a sequential ordered Stream produced by iterative application of the given next function to an initial element, conditioned on satisfying the given hasNext predicate.
    static <T> Stream<T>
    Stream.iterate​(T seed, UnaryOperator<T> 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.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.
    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-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>
    Stream.of​(T t)
    Returns a sequential Stream 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 sequential Stream containing a single element, if non-null, otherwise returns an empty Stream.
    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.skip​(long n)
    Returns a stream consisting of the remaining elements of this stream after discarding the first n 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 provided Comparator.
    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.
    static <T> Stream<T>
    StreamSupport.stream​(Spliterator<T> spliterator, boolean parallel)
    Creates a new sequential or parallel Stream from a Spliterator.
    default 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.
    Methods in java.util.stream with parameters of type Stream
    Modifier and Type
    Method
    Description
    static <T> Stream<T>
    Stream.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.
    Method parameters in java.util.stream with type arguments of type Stream
    Modifier and Type
    Method
    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.
  • Uses of Stream in java.util.zip

    Methods in java.util.zip that return Stream
    Modifier and Type
    Method
    Description
    Stream<? extends ZipEntry>
    ZipFile.stream()
    Returns an ordered Stream over the ZIP file entries.
  • Uses of Stream in javax.xml.catalog

    Methods in javax.xml.catalog that return Stream
    Modifier and Type
    Method
    Description
    Catalog.catalogs()
    Returns a sequential Stream of alternative Catalogs specified using the nextCatalog 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 the CatalogManager.