I'm building an app and willing to post it on play store.
As common when build the app specially for the beginners like me, I used to ask questions at the web specially Stack Overflow about how to implement some methods, listeners,etc.. (not libraries) and got replies from different users. Now I don't now if my android app contains those techniques of implementing different methods and classes which I do not know whether it belongs to someone or not. From other side I also share some of my techniques to others when I got issues solved by myself.
I'm using openCSV library in my app, do I need to declare it in the license? and how?