A lot of the time, code will look a fair bit simpler and shorter in Kotlin for Android as compared with Java. Consider the following example of adding an onClickListener to a floating action ...

Overall, Kotlin offers several advantages over Java for code to be run on the JVM, and Kotlin can also be used to generate JavaScript and native code. Compared to Java, Kotlin is safer, more ...

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 was created by JetBrains and officially released early last year. It gained popularity largely because it runs on the Java Virtual Machine and can be used alongside Java to build apps.

In other words, new versions should not break code written for v1.0 or later. There are plenty of blog posts and official documentation that cover learning and using Kotlin.