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Learner Reviews & Feedback for Kotlin for Java Developers by JetBrains

1,117 ratings
286 reviews

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 29, 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.


Feb 11, 2019

This course is a very comprehensive and detailed introduction to Kotlin. However, it would be even better if it could include the generics part which is the most difficult but quite frequently used.

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176 - 200 of 286 Reviews for Kotlin for Java Developers

By Antonio R C N

Aug 29, 2019

Very good course, with excelent exercises.

By Muhammad I

Jun 23, 2020

Amazing course for beginners especially

By Egor M

Feb 23, 2020

Exceptional course, can't wait for more

By Tavish B

Jun 12, 2020

This course may challenges your brain.

By Васильев А А

Oct 01, 2019

Очень хороший вводный курс по Котлину

By Drazen P

Jul 28, 2019

I really enjoyed this course. Thanks!


May 25, 2019

NOT LEARNED YET ha.... ha.......

By Luke M

Apr 18, 2019

Fun course with a good pace. Thanks..

By Olaf G

Aug 05, 2019

Exceptionally good course! Thanks!

By Veggalam S

Apr 23, 2020

very helpful and understandable

By Nemanja S

Jan 13, 2020

Great course, I learned a lot!

By Michal K

May 31, 2019

Very good to start with Kotlin

By Irwan C

Jun 30, 2019

Good for learning fundamental

By Hamza A

Dec 10, 2019

Excellent and good knowledge

By Abu Y

Jul 05, 2019

Best course . Learned a lot

By Rudra D

May 23, 2020

Great learning experience!

By Jobin I

Apr 21, 2020

Detailed concept of kotlin

By Abhay A

Dec 04, 2019

Exercises were very good.

By Dmitrii K

Apr 16, 2019

I am waiting next course

By Prakash R

Dec 12, 2019

Good for new learners

By Martin R

Mar 02, 2019

Loved your exercises.

By Shourya S

May 30, 2020

Excelllent Course .

By Marcin E

Apr 19, 2020

It wasn't so easy!

By Ivan Š

Dec 09, 2018

Great assignments!