Java FlatMap in Java Streams - Java FlatMap vs Map

Published: 07 August 2020
on channel: Lemubit Academy

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Java FlatMap 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.

There are other variations of FlatMap such as FlatMapToDouble which returns a DoubleStream 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.

FlatMapToInt which returns an IntStream 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.

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