How can i transformed to a professional java developer?

Question

i want transformed to a professioal java and android developer.
pease tell me about this.

Answer 1

Practice practice practice

1. Learn others code.
2. Follow professional java devloper here is link LukArToDo Danijel Ivanović Gaurav Agrawal D_Stark and read her codes
3. Learn Data structer and algorithem.

https://www.sololearn.com/learn/773/?ref=app

https://www.sololearn.com/learn/774/?ref=app

Than if you want to become a professional android devloper than focus on java basic and oop
(Object oriented profgramming)