Uses of Interface java.util.stream.BaseStream (Java Platform SE 8 )
Date: 2026-04-17

## Uses of Interface
java.util.stream.BaseStream

- Packages that use BaseStream
  Package | Description
  --- | ---
  java.util.stream | Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.

- - ### Uses of BaseStream in java.util.stream

    Classes in java.util.stream with type parameters of type BaseStream
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `BaseStream<T,S extends BaseStream<T,S>>` Base interface for streams, which are sequences of elements supporting sequential and parallel aggregate operations.

    Subinterfaces of BaseStream in java.util.stream
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `DoubleStream` A sequence of primitive double-valued elements supporting sequential and parallel aggregate operations.
    `interface` | `IntStream` A sequence of primitive int-valued elements supporting sequential and parallel aggregate operations.
    `interface` | `LongStream` A sequence of primitive long-valued elements supporting sequential and parallel aggregate operations.
    `interface` | `Stream<T>` A sequence of elements supporting sequential and parallel aggregate operations.

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2026, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.