FlatMap in java 8 Stream | FlatMap | Java Shastra

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?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. Each mapped stream is closed after its contents have been placed into this stream. (If a mapped stream is null an empty stream is used, instead.)

References: https://docs.oracle.com/javase/8/docs/api/java/util/stream/Stream.htm #flatMap-java.util.function.Function
https://docs.oracle.com/javase/8/docs/api/java/util/stream/Stream.html


?Timestamps:
0:10 - Introduction

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