Sequences: Iterable vs. Sequence vs. Java Stream

A discussion on performance of Sequence vs. Iterable, when to use which, and the differences between Sequence and Java Streams.

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THE CURRENT VERSION OF THIS ARTICLE IS PUBLISHED HERE.

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Tags: #FYI++

This article is part of the Kotlin Primer, an opinionated guide to the Kotlin language, which is indented to help facilitate Kotlin adoption inside Java-centric organizations. It was originally written as an organizational learning resource for Etnetera a.s. and I would like to express my sincere gratitude for their support.

It is recommended to read the Introduction before moving on. Check out the Table of Contents for all articles.

When To Use Iterable vs. When To Use Sequence

One of the main differences between Iterable and Sequence, and most often the reason one is used over the other, is differences in performance. However, before we get into this subject, let me just remind you that there is only a single correct way to determine which of the…