4.7
stars
1,832 ratings

Svetlana Isakova +1 more instructor

92,947 already enrolled

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Kotlin for Java Developers

JetBrains

About this Course

93,499 recent views

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.

Flexible deadlines

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Shareable Certificate

Earn a Certificate upon completion

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Start instantly and learn at your own schedule.

Intermediate Level

Approx. 25 hours to complete

English

Subtitles: Arabic, French, Portuguese (European), Italian, Vietnamese, German, Russian, English, Spanish

Flexible deadlines

Reset deadlines in accordance to your schedule.

Shareable Certificate

Earn a Certificate upon completion

100% online

Start instantly and learn at your own schedule.

Intermediate Level

Approx. 25 hours to complete

English

Subtitles: Arabic, French, Portuguese (European), Italian, Vietnamese, German, Russian, English, Spanish

Instructors

Instructor rating

4.56/5 (471 Ratings)

Svetlana Isakova

Andrey Breslav

Offered by

JetBrains

At JetBrains, code is our passion. For over 15 years we have strived to make the strongest, most effective developer tools on earth. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover and create.

Syllabus - What you will learn from this course

Content Rating92%(9,409 ratings)

Week

Week 1

13 minutes to complete

Introduction

13 minutes to complete

4 videos (Total 13 min)

Week

Week 2

4 hours to complete

Starting up with Kotlin

4 hours to complete

17 videos (Total 73 min), 1 reading, 1 quiz

17 videos

From Java to Kotlin7m

Introducing Kotlin to an existing project2m

"Hello, world" example4m

Variables5m

Functions3m

Named & default arguments5m

Conditionals: if & when5m

Loops2m

'in' checks & ranges4m

Exceptions3m

Extension Functions4m

Examples from the Standard Library8m

Calling Extensions3m

Importance of extensions3m

Solution: Mastermind2m

Solution: Checking identifier3m

Solution: Sum as an extension function58s

1 reading

Setting up programming assignments10m

Week

Week 3

7 hours to complete

Nullability, Functional Programming

7 hours to complete

19 videos (Total 92 min), 1 reading, 2 quizzes

19 videos

Nullable types10m

Nullable types under the hood4m

Safe casts2m

Importance of nullability2m

Lambdas3m

Common Operations on collections6m

Operations Quiz - I4m

Operations Quiz - II7m

Function Types5m

Member References6m

return from Lambda5m

Is Kotlin a functional language?1m

Solution: Nice String6m

Solution: Taxi Park, tasks 1-35m

Solution: Taxi Park, tasks 4 & 58m

Solution: Taxi Park, task 62m

Solution: Checking whether string is null or empty2m

Solution: Safe casts59s

Solution: Interchangeable predicates3m

1 reading

Mastermind in a functional style1m

Week

Week 4

7 hours to complete

Properties, OOP, Conventions

7 hours to complete

19 videos (Total 99 min)

19 videos

Properties7m

More about Properties4m

Lazy or late initialization5m

OOP in Kotlin4m

Constructors, Inheritance syntax6m

Class modifiers - I4m

Class modifiers - II5m

Objects, object expressions & companion objects6m

Constants4m

Generics6m

OOP design choices5m

Operator Overloading3m

Conventions8m

(Not)using operator overloading2m

Solution: Rationals15m

Solution: Unstable val2m

Solution: Using lateinit property1m

Solution: NPE during initialization4m

Solution: Equality2m

Reviews

4.7

454 reviews

5 stars
76.16%
4 stars
18.67%
3 stars
3.38%
2 stars
0.64%
1 star
1.12%

TOP REVIEWS FROM KOTLIN FOR JAVA DEVELOPERS

by JRJun 19, 2019

The course was very well organized. Instructor clearly explained not only the language features, but also how they works under the hood. This allows the student to take full advantage of Kotlin.

by CAAug 7, 2020

Great course. I thought it was going to be a basic course and it ended being harder, in a good way! Thanks Svetlana and Andrey for putting together this course, and of course JetBrains

by HPJan 27, 2019

I learned a lot of things!!! despite I have been using kotlin in my work. The materials and explanations are really good. One of the best courses I've taken in Coursera definitely!!!

by KHJun 13, 2021

Good survey of Kotlin language features. Would have been nice if assignments focused more on Kotlin idioms. Perhaps that's a fundamental issue with using an automated grader?

View all reviews

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Is financial aid available?
Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.

More questions? Visit the Learner Help Center.

Kotlin for Java Developers

Kotlin for Java Developers

About this Course