This intensive, hands-on course bridges the gap between Java and Kotlin, empowering experienced developers to write cleaner, more expressive code. Through a series of practical exercises directly in the IDE, you will move beyond basic syntax to adopt idiomatic Kotlin, leveraging its seamless interoperability to enhance existing Java projects or build robust new backend and Android applications.
Kotlin for Java Developers

Kotlin for Java Developers

Instructors: Svetlana Isakova
Access provided by The MasterMind Cooperative
123,984 already enrolled
2,127 reviews
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What you'll learn
Refactor Java to Idiomatic Kotlin: Convert verbose Java patterns into concise Kotlin syntax while maintaining 100% JVM interoperability.
Eliminate NullPointerExceptions: Implement Kotlin’s type system to resolve nullability at compile-time rather than runtime.
Architect Functional Data Pipelines: Use lambdas, receivers, and Sequences to build high-efficiency, expressive logic.
Streamline Data Structures: Use data classes, properties, and generics to eliminate boilerplate and simplify Object-Oriented design.
Skills you'll gain
Tools you'll learn
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There are 5 modules in this course
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Reviewed on 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).
Reviewed on Aug 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
Reviewed on Jun 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?



