# Variables, Expressions, and Types

DevFeed: [Variables, Expressions, and Types](<https://devfeed.tech/articles/variables-expressions-and-types-25065.md>)

Original publisher: [Read original article](<https://typealias.com/start/kotlin-variables-expressions-types/>)

Author: author@typealias.com (Dave Leeds)

Published: 2020-03-05T00:00:00Z

Content type: tutorial

Language: en

Sources: [Dave Leeds on Kotlin - typealias.com](<https://devfeed.tech/sources/dave-leeds-on-kotlin-typealias-com.md>)

Topics: [Kotlin](<https://devfeed.tech/topics/kotlin.md>), [Programming](<https://devfeed.tech/topics/programming.md>), [Code](<https://devfeed.tech/topics/code.md>)

Tags: [developer](<https://devfeed.tech/tags/developer.md>), [expression](<https://devfeed.tech/tags/expression.md>), [fundamentals](<https://devfeed.tech/tags/fundamentals.md>), [introduction](<https://devfeed.tech/tags/introduction.md>), [kotlin](<https://devfeed.tech/tags/kotlin.md>), [language](<https://devfeed.tech/tags/language.md>), [learn-to-program](<https://devfeed.tech/tags/learn-to-program.md>), [programming](<https://devfeed.tech/tags/programming.md>), [statement](<https://devfeed.tech/tags/statement.md>), [types](<https://devfeed.tech/tags/types.md>), [val](<https://devfeed.tech/tags/val.md>), [var](<https://devfeed.tech/tags/var.md>), [variable](<https://devfeed.tech/tags/variable.md>)

## AI overview

An introductory Kotlin chapter explains variables, expressions, and types. It uses the example of a circle's radius to show how variables represent values and introduces variables as containers for numbers and other data in programming.

## Source excerpt

So you want to be a Kotlin developer? You've come to the right place! This book will take you through the fundamentals of Kotlin, gently introducing you to the most important concepts of the language in order to help you become a proficient Kotlin developer. Even if you're a seasoned professional, it's important to know the fundamentals in order to establish a solid foundation of understanding so that you can be as effective as possible.