I found this website(cplusplus.com) to be very helpful with c++ question but, now I am teaching myself Java. Is there any website similar to this one that can answer problems with your code and teach you new tricks to resolve the issue. I found one such as stackoverflow but i didn't find that to be to useful. Thank you in advanced.
Also, if you want to learn code on your phone easily, I would highly suggest a free app called "SoloLearn" It has a few different languages on there and is by far the best mobile free app I have used. Java is also on there.