What do I need to study to be able to program an app for android. Java, anything else?

Answer 1

Java or Kotlin if you are doing in native. XML you should know for front end. You can go for Flutter along with Dart for cross platform.
Thank you

Answer 2

Well, if you are a total beginner to programming, I'll suggest learning html, css then Javascript. After that you can use react native to build cross platform mobile apps. (including Android)

Answer 3

Java or kotlin for android programming..
For ios apps, learn swift or object-c