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Learner Reviews & Feedback for Kotlin for Java Developers by JetBrains

1,920 ratings

About the Course

The Kotlin programming language is a modern language that gives you more power for your everyday tasks. Kotlin is concise, safe, pragmatic, and focused on interoperability with Java code. It can be used almost everywhere Java is used today: for server-side development, Android apps, and much more. Kotlin is 100% compatible with all existing Java frameworks, and has good tooling support. It’s a pragmatic language with a very low learning curve, and can be quickly grasped by Java developers. Kotlin code might be compiled not only to JVM bytecode but to JavaScript and Native code as well, but this course is focused on Kotlin/JVM. This course aims to share with you the power and the beauty of Kotlin. We'll have a basic overview of the language, as well as a discussion of many corner cases, especially concerning Java interoperability. The course is based on your Java experience; it shows the similarities between the two languages and focuses on what's going to be different. Note that this course won't cover the programming fundamentals. We'll discuss: basic syntax, nullability, functional programming with Kotlin, object-oriented programming with Kotlin, the power of the Kotlin standard library, and Java interoperability....

Top reviews


Jun 28, 2019

Excellent course, packed with relevant content and useful hands on Kotlin exercises with great feedback based on Coursera provided unit tests. Looking forward to more Coursera courses from JetBrains.


Mar 15, 2020

Thanks JetBrains team, the course is as great as all the things that you do!

Now I am going to visit Kotlin island (Kronstadt) to see lighthouse on your logo (I leave nearby in Saint-Petersburg).

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226 - 250 of 469 Reviews for Kotlin for Java Developers

By Turkmen M D

May 17, 2020

I liked the pace in the course , the instructions and the assignments.

By Cristian H

Jun 15, 2021

I really enjoyed the course! It was really nice and full of knowlegde

By Oleksandr S

Jul 13, 2020

Well done! Can't wait to see a second part with more advanced topics.

By Mahmoud E

Mar 2, 2020

That was an amazing course, i have learned a lot, Thank you so much.

By Ригин А М

Dec 23, 2021

Fine and broad practical introduction to Kotlin for Java experts :)

By Monde N

Feb 18, 2021

Thank you guys so much for the course! Very worthwhile and helpful

By Vadim Z

May 29, 2019

Shoer videos, interesting assignments, good language. Recommended!

By Stuart S

Jan 6, 2019

Great Kotlin introduction. Sits at the right level of difficulty.

By Jan V

Nov 26, 2018

Nice course, you get the basics. Appropriate level of assignments.

By Rui W

Feb 21, 2021

Great course for learning Kotlin. Coding was challenging and fun.

By Denis

Oct 9, 2019

Great course to get quick grasp of Kotlin while working with Java

By Prathamesh T

May 15, 2022

Helped me to get started with Android development using Kotlin.

By Shayak B

Jun 5, 2020

Very comprehensive course with challenging, yet doable problems

By Lukáš J

Jul 9, 2020

Funny assignments and learnt new thins about how Kotlin works.

By Заяць А В

Nov 1, 2018

Quick, detailed, deep. Very interesting tasks. Thanks authors.

By Javier M

Aug 29, 2020

A good overview of concepts with relevant practical exercises

By Куприянов К

Feb 22, 2020

Explanations were clear and practice tasks were very useful.

By Furqan U

May 28, 2020

Simply awesome. A very in detail explaination of the topics

By Mansur G

Dec 9, 2019

Svetlana is one of the best instructors I have ever seen!

By Cristhian C G N

Jan 18, 2021

Excellent!, you'll ended up being a kotlin expert! 10/10

By Don G

May 25, 2022

Great course for introducing Java developers to Kotlin.

By Arash N

Aug 7, 2020

Great course with well designed assignments and quizzes

By Fanda S

Apr 5, 2020

great course, the assignments gave me the most insights

By Jesus V S

Jul 26, 2021

It's really good and the practices are totally amazing

By yaya m

Sep 16, 2022

It was very good to learn and implement fun games :)