Gain insights into Kotlin’s basics, including variable declarations, data types, conditions, loops, and functions. Discover how to write simple Kotlin scripts and transition to advanced programming.

Kotlin is quickly joining the ranks of the most popular programming languages. Now that Google supports Kotlin for Android app development as the primary choice over Java, we’ll only see more developers making the switch. So if you’re looking to get started with Android app development, then you’ve come to the right place.

This course will be your guide on getting started with Kotlin. We’ll go over all the language basics including variable declarations, data types and the type system to conditions, loops, and functions.

After this course, you’ll be able to write simple Kotlin scripts and applications. With this solid understanding of the language basics, you’ll be able to more easily follow more advanced material covering functional and object-oriented programming.

Homam B.

What a brilliant course, its not too long so its fairly easy to get through in a weekend. Goes through the fundimentals of Kotlin in just the right amount of detail. I would recommend this as a first step into Kotlin language

"Brilliant course"

Patricio M.

I have completed the course and I have to say that it's extremely well done

The examples used are clear and easy to follow

The code is very clean and the instructor strives to write clear and concise code and he explains concepts very clearly

Kudos for a job well done!

"Extremely well done"

Alan J.

Clear explanations, and well organized. Highly recommended.

"Highly recommended"

Raphael A.

Excellent course. It's a beginner course in programming, but even as a Java programmer I've been able to remember a lot of things and get productive quickly in Kotlin. The course is well structured and the teacher knows the subject (I bought another course from the teacher).

"Excellent course"

Kotlin Crash Course for Programmers

Now you have all the knowledge required for intermediate and advanced Kotlin material.

This lesson offers useful resources to point you in the right direction.

> **Before you continue on your Kotlin journey, please leave feedback by clicking the "Send feedback" button at the bottom of the page to let me know:**
> * What did you like? What could be improved?
> * Would you like me to create a more advanced Kotlin course on Educative?
> * Which other topics do you want to learn about?
> 
> **Any feedback is greatly appreciated. Thanks for finishing this course and I hope you enjoyed it!**

# Free Resources

* **[Official Kotlin language documentation](https://kotlinlang.org/docs/reference/)**
  
  ✔️ Well-written and provides up-to-date info directly from the makers of Kotlin.
  
  ✖️ Not as engaging to work through, no exercises, not hands-on.

* **[Official Kotlin Koans](https://play.kotlinlang.org/koans/overview)**

  ✔️ Hands-on coding exercises, can be done directly in the browser or in your IDE, directly from Jetbrains

  ✖️ You should already know the respective language features, not a tutorial

* [Kotlin Slack](https://surveys.jetbrains.com/s3/kotlin-slack-sign-up)

  ✔️ Great place to ask all your questions and learn about all sides of Kotlin

  ✔️ Brilliant community with many Kotlin developers ready to help

* [Talking Kotlin podcast](https://talkingkotlin.com/)

  ✔️ Directly from Jetbrains, diverse range of topics

  ✖️ Often very specific and/or advanced topics

* [Kotlin for Java Developers online course](https://www.coursera.org/learn/kotlin-for-java-developers)

  ✔️ Directly from Jetbrains, goes beyond the basics


# Further Resources

## Online Courses

* **[Kotlin for Android & Java developers: Clean Code on Android](https://www.udemy.com/course/kotlin-android/?referralCode=0D2FA3F31637E59E3358)**

  ✔️ Build your own Android app with Kotlin

  ✔️ Recaps the basics and quickly moves on to intermediate and advanced language features

  * This is one of my Udemy courses

* **[Kotlin for Beginners](https://www.udemy.com/course/kotlin-course/?referralCode=DC98D1E2CC21399ED406)**

  ✔️ Engaging videos, quizzes, and coding exercises

  ✖️ The first half of the course is very similar to what you learned here, but it may be a good way to recap the topics

  * This is one of my Udemy courses


## Books

* **[Kotlin for Android app development](https://kotlinandroidbook.com/)**

  ✔️ Covers Kotlin basics, functional programming, object orientation, asynchronous programming, Android app development, best practices, and more

  * This book, which I wrote, covers much more than this introductory course

* **[Kotlin in Action](https://www.manning.com/books/kotlin-in-action)**

  ✔️ Great resource for the Kotlin language itself, written by two members of the Kotlin team at Jetbrains

  ✖️ Does not cover using Kotlin on Android or other specific platforms

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# Feedback?


Discover the best resources to continue your Kotlin journey, and leave your feedback for the course!

Hello Kotlin!

Variables and Data Types

Conditions

Collections

Loops

Functions

Equality Checks

Exception Handling

Summary

Next Steps