Kotlin fits seamlessly into the Java ecosystem, since it compiles down to Java bytecode. Several popular frameworks have announced Kotlin support – including Spring, Vert.x, Spark and others.

Java has been very active lately in improving its concurrency model, and some of the improvements are inspired by Kotlin’s coroutines. Coroutines give you a different kind of access to threading.

Embabel encourages building a rich domain model in an application, typically Kotlin data classes or Java records. This ensures that prompts are type-safe, tool-able, and survive refactoring.

The Kotlin vs Java debate is a new one, with each language having their own merits But what exactly makes them stand apart? That's what we aim to explore.

Java still holds a large majority, with 86.9% of developers saying they use it as their main programming language for building JVM applications, compared to 5.5% with Kotlin.

The growth has put Kotlin in second place, albeit well behind Java, but now ahead of Clojure and Scala. Oracle JDK – Java Development Kit – is also losing share to OpenJDK alternatives.

Kotlin is similar to Java in many ways and runs on the Java Virtual Machine. It is 100% interoperable with Java, and thus there is no performance loss when choosing to use Kotlin for Android ...

Here's what Meta's developers have learned from moving their code base from the Java programming language over to Kotlin.