Coursera

Kotlin for Java Developers (Coursera)

Offered by JetBrains,

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. This course aims to share with you the power and the beauty of Kotlin.

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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.
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.

Syllabus

Week 1 - Introduction
Week 2 - Starting up with Kotlin
Week 3 - Nullability, Functional Programming
Week 4 - Properties, OOP, Conventions
Week 5 - Sequences, Lambdas with Receiver, Types

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