Java 8 FlatMap Example Java Inspires
In this video, we will see how to use flapMap from streams using simple example.
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In Java streams, `flatMap` is a powerful intermediate operation that operates on a stream of elements and produces a new stream. It is often used in conjunction with functions that return streams to flatten the nested structure of streams. The primary purpose of `flatMap` is to transform each element of a stream into zero or more elements of a new stream, and then flatten these streams into a single stream.
Here's a brief explanation of how `flatMap` works:
1. Transformation: The `flatMap` function takes a mapper function as an argument. This function is applied to each element of the original stream, resulting in a stream of streams.
2. Flattening: `flatMap` then flattens this stream of streams into a single stream by concatenating the individual streams into one.
A common use case for `flatMap` is when you have a stream of collections or arrays and you want to process each element of those collections individually rather than dealing with the nested structure.
This functionality is particularly useful in scenarios where you want to work with individual elements rather than the entire nested structure of the original collections.
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