Uses of Interface
Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
Uses of LongFunction in java.util.stream
Methods in java.util.stream with parameters of type LongFunction Modifier and Type Method Description
LongFunction<? extends LongStream> 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.
LongFunction<? extends U> mapper)(Returns an object-valued
Streamconsisting of the results of applying the given function to the elements of this stream.