yes, Kotlin is a strictly better designed language than Java . The type system is much better due to both function and nullable types. Knowledge of what exactly can be set to null and when helps out immensely when it comes to reasoning about the code.
Read moreShould I learn Android with Java or Kotlin?
For most, Kotlin’s strengths outweigh the language’s setbacks . There are definite limitations within Java that impede Android API design. Kotlin is inherently lightweight, clean and far less verbose, especially in terms of writing callbacks, data classes, and getters/setters.
Read more