Java Streams API

Master Java's Streams API for functional-style operations on collections, enabling declarative data processing with operations like filter, map, and reduce.

Introduction to Streams

Streams provide a functional approach to processing collections of objects. Unlike collections, streams don't store elements - they convey elements from a source through a pipeline of operations.

Creating streams:

import java.util.Arrays;
import java.util.List;
import java.util.stream.Stream;