# Uses of Interface
java.util.function.LongToDoubleFunction

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

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

  Methods in java.util.stream with parameters of type LongToDoubleFunction
  Modifier and Type
  Method
  Description
  `DoubleStream`
  LongStream.`mapToDouble(LongToDoubleFunction mapper)`
  Returns a `DoubleStream` consisting of the results of applying the given function to the elements of this stream.