Mastering flatMap in Java: A Comprehensive Guide with Simple Examples

The flatMap function in Java is a powerful tool that allows us to flatten nested collections, transform data, and simplify complex transformations into more readable and efficient code. In this guide, we’ll explore several simple use cases of flatMap to show its utility and power in real-world scenarios.

Mastering flatMap in Java: A Comprehensive Guide with Simple Examples

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What is flatMap?

In Java, flatMap is used to flatten a stream of data that contains other streams, lists…