Find out how to customize Kotlin and Java classes so they provide exactly the functionality your project requires, including previously-closed classes.

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

Kotlin is a statically typed “pragmatic” programming language for the Java Virtual Machine and Android that combines object-oriented and functional programming features.

Google offers free lessons to help up-and-coming developers build Android apps using Kotlin.

Kotlin offers big advantages over Java for JVM and Android development, and plays nicely with Java in the same projects.

Investigating what kind of support the open source code editor has for Kotlin, recently named a first-class programming language for Android development.