What are the topics to focus on when learning kotlin for Android development?

Question

Kotlin

Answer 1

Everything

You are learning programming. It is not an educational course in which you can leave some topics.

Answer 2

I'd like to add: focus on what doesn't make sense or is difficult for you to understand.

Answer 3

Thanks so much for your response everyone. Actually I'm currently using java for Android apps I just want to incorporate kotlin also

Answer 4

Each topic like what n what ?