This is somewhat related to this discussion, but different enough to deserve its own thread, I think.
What would be the site policy regarding questions that are generally considered "easy", but may be asked during the first semester of studying computer science. Example:
"How do I get the symmetrical difference of two lists in Java?"
This question would, in my experience, be downvoted on SO. Would it be an acceptable question here? How would a question that would be generally considered "trivial" on SO have to be asked to be okay here? Any special quality guidelines in addition to the regular ones (Share your research, don't just ask, but give your current progress, paste your source code, etc.).
Somewhat related: If those questions are okay here, how do I decide if my question should be asked here or on SO? Based on perceived difficulty? Based on if it is something I am doing for the university vs. a part-time project? Something else?
I'm interested in your opinions.