What is the best programming language to create and design android application

Answer 1

There are two official programming languages for native mobile android development:
1.Java
2 .Kotlin
Kotlin was declared official android language some 2 months ago during Google I/O 2017.
Kotlin user community is small and so is support. So don’t expect to get your problems solved in minute or two while using Kotlin any time soon

If you are building your app from scratch and there is no dependency on some very complex c++ libraries which can’t be ported to java.
Swift is the latest programming language to foray into the Apple ecosystem.

Answer 2

Java

Answer 3

Depending on what you want to create, Java combined with the IDE Android SDK is a good starting point.