I've learnt basic C++ programming as my school curriculum. Now I want to study C (my college curriculum), Java and c++. What should be my approach?

[Marshall]

Hello everyone, I have a small question of ethics. I would like to know i've learnt basic c++ programming as my school curriculum. now i want to study c (my college curriculum), java and c++. what should be my approach? I thank you for giving me an answer please as soon as possible.