Kotlin training

No there is no need to learn Java before learning Kotlin for Android. As all we know , this year Google officially make it 2nd language for Android development. But you should have basic knowledge of programming and OOPs concepts and former experience in a object oriented language like c++ .

Knowledge of Java is not a must . As I see, Kotlin borrowed something from Python and other languages, so you will not feel yourself altogether lost trying to get acquainted with it.21 Nis 2016

That’s all about whether Android developers should learn Kotlin or Java . As I said, if you are a complete beginner who wants to start your career as an Android developer, you’d better start with Java.