## 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 and 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.

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