Basic Variables

A brief rundown of variables in Kotlin

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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.

Variable declarations start with the val or var keyword, followed by the variable name.

• val creates an immutable variable, whose value cannot be changed
• var creates a mutable variable, whose value can be changed

As is the case with function declarations, types are specified after declarations.