# Uses of Interface
java.util.function.DoubleFunction

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

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

  Methods in java.util.stream with parameters of type DoubleFunction
  Modifier and Type
  Method
  Description
  `DoubleStream`
  DoubleStream.`flatMap(DoubleFunction<? extends DoubleStream> 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.
  `<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.