If you want to learn Android app development, then you should learn Kotlin. Kotlin is now preferred over Java for developing Android applications.
Major product-based companies like Facebook, Snapchat, Airbnb, etc. are moving the code base of their Android application from Java to Kotlin because Kotlin provides way better performance than Java.
Also, Kotlin is easy to learn and writing code in Kotlin is also easy.
Our Kotlin Tutorial will help you learn Kotlin programming language and understand its evolution from Java. The Kotlin tutorial starts from the basics and gradually moves on to advanced concepts.
You will only find the core concepts here and nothing related to Android Application development because we think you must learn Kotlin as a programming language and then use it for Android app development.