Java 8 for Experienced Developers: Lambdas, Stream API & Beyond/

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Introduction

Introduction

This lesson introduces the Stream API.

We'll cover the following...

The addition of the Stream API was one of the major features added to Java 8. A Stream in Java can be defined as a sequence of elements from a source that supports aggregate operations on them. The source here refers to collections or arrays that provide data to a stream.

A few important points about streams are:

  1. A stream is not a data structure itself. It is a bunch of operations applied to a source. The source can be collections, arrays or I/O channels.

  2. Streams don’t change the original data structure. ...