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Learner Reviews & Feedback for Kotlin for Java Developers by JetBrains

1,910 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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251 - 275 of 467 Reviews for Kotlin for Java Developers

By John M

Jan 19, 2020

Tremendously enjoyed the course and the assignments!

By Tony B

Mar 17, 2019

This is a complete Kotlin course for Java developers

By Reyter O G C

Oct 22, 2022

A very nice course.with an insteresting assigments

By Anurag K

Aug 16, 2020

Good course for beginners and experienced developer

By Dmitriy D

Jul 20, 2019

It was really helpful. Great tasks and explanation.

By Jonathan F

Oct 6, 2019

Great course, learned a ton, well worth the price!

By Ching-Hao T

Jun 23, 2019

Nice course, and I learn more about Kotlin details

By David H

Nov 1, 2018

Great course - assignments at the right level too.

By Jahan Z

Nov 4, 2021

It was a very joyful learning experience, thanks!

By Hanson C

Nov 26, 2018

Very useful material. Can't wait for the sequel!

By Ahmed A

Aug 27, 2022

good instructor and good course thanks JetBrains

By Sergey S

May 5, 2020

You can try new method for types and collections

By Piotr L

Jul 14, 2019

Great course with great challenging assignments!

By Gianluca A

Nov 27, 2018

Great course with great challenging assignments!

By Karpenko A

Nov 17, 2018

She doesn't know English. It is terrible lector!

By Hoài A B L

Sep 12, 2022

good course for beginner who know basic of Java

By Chandrabhan H A

Aug 27, 2022

Very useful and understandable course

Thank you

By Поляков С Э

Sep 12, 2020

Great practical cases and theoretical material!

By Ilya B

Feb 8, 2019

Wonderful migration course from java to kotlin.

By Joaquin R

Apr 8, 2022

Very well explained and loved the excercises

By Mykhailo D

Jan 30, 2019

Nice but easy, waiting for 2nd and 3rd course

By Nicolas M

Feb 29, 2020

Great course with good exemples to practice.

By Svetlana B

Jul 18, 2021

Nice course with very useful topics covered

By Vladimir

Mar 13, 2019

Waited for the next course from kotlin team