Kotlin is a modern alternative to Java that supports functional programming in the JVM. Here's a first look at programming with Kotlin using some of the concepts and syntax you already know from Java.

Kotlin’s coroutines are found in the kotlinx.coroutines package, which covers a wide terrain; everything from simple blocking subroutines to sophisticated reactive pipelines.

You can use a Kotlin library from Java. This offers the same benefit as Java libraries in Kotlin: it’s relatively easy to create a Kotlin library that can be used from Java without feeling alien.

Kotlin, a language fully interoperable with Java, is rising in the ranks. Each month, TIOBE Software ranks 100 programming languages by their popularity with the programming community. Jump to: ...