Java and Kotlin How to study together?

Question

Java

I want to do mobile development, android, of course, I like more. At first I looked towards C # and Xamarin, but I thought that Microsoft would not take anything, and kill Xamarin and be left with nothing. What do you think about this? Then I read the official tutorials on android development, picked it up. Kotlin, as a language, I liked more. But I understand that it is impossible without Java. So how to combine these two languages? Write on one and on the other together? Or alternate between projects? I want to do this in order to be in the subject if the world understands that Kotlin van love is in Android.

Answer 1

Learn one thing. It is better to learn 1 language well than to have a mess of two languages. And in development, it’s not so much languages ​​that decide as the ability to build application architecture, choose optimal algorithms and frameworks. The outlook in related technologies is also welcome. And languages ​​are mastered quickly, 2-10 days to master the syntax, while learning to write well-thought-out projects from an architectural point of view is very difficult and 10 years is not enough.

Answer 2

You must first learn Java. Because Kotlin is based on it. And then, if there is a desire, you can Kotlin.
And by the way, I do not recommend combining them. Or, if you can’t do without it, then carefully consider the architecture. Because a lot of errors can occur in Kotlin-Java programs, at least due to non-Optional Kotlin types.

Answer 3

Learn Java, because Kotlin is just a set of goodies for it, which is learned by a cursory reading of the documentation.