Java 8 flatMap Example

Date: 2018-02-01

This Java tutorial explains the flatMap() method in Java 8 Streams API. flatMap() takes a function that transforms each stream element into a stream of new values, then flattens these into a single stream. It's useful for processing nested structures like lists of lists, transforming them into a single, flattened list. The tutorial provides a step-by-step example using Eclipse, Maven, and a sample Java program demonstrating flatMap() with a Stream of String lists.

Read more: https://examples.javacodegeeks.com/core-java/java8-flatmap-example/