Introduction - If you have any usage issues, please Google them yourself
Kotlin is a new programming language based on JVM, developed by JetBrains. Kotlin can be compiled into Java bytecode, and can also be compiled into JavaScript, which is convenient for running on JVM free devices. JetBrains, as a popular provider of Java IDE IntelliJ, has opened its Kotlin programming language under the Apache license. Kotlin has officially become the official Android support development language