Can anyone help me,it’s important question to me

1

I’m studying programming
First of all, I want to be an app developer
I made a plan for me. I want to take a language, for example C ++, and after that I study data structures and algorithms and
But I started and finished with C ++ basics

What I mean is after finishing c ++ basics. Do I study Java basics and continue data structures and algorithms in Java?
Or study data structures and algorithms in C ++