However, I have no single idea what is FizzBuzz, and if someone asks me to do it an interview, I would fail miserably. A fellow commenter here has already addr

However, I have no single idea what is FizzBuzz, and if someone asks me to do it an interview, I would fail miserably. A fellow commenter here has already addressed this point, but let me reiterate: you wouldn't be told "do FizzBuzz" with the expectation that you already know what FizzBuzz is. The problem definition would be explained, and it is a very trivial problem. That's why it's often used as a low level filter for programming interviews. At a former employer we used to do just about everything we could to make the process as easy for the candidates as we could. We'd give them a laptop with an IDE running, the skeleton of the test app already in place (eg, main method, and any "plumbing" dictated by the language. We supported using Java and Python) and comments basically saying "flesh in the required logic here." We would give them, IIRC, 5 such "skeletons" and ask them to pick any one (or more) they wanted to implement and gave them approximately 30 minutes. Besides FizzBuzz the other ones were "reverse a string" and other problems of similar difficulty. And yes, you could use any standard library API that you wanted. And frankly, if somebody had said "I know how to do this, but I'd need to download library $FOO" we probably would have arranged to get them library $FOO ('net access on the test machine was disabled, as we really didn't want to test their ability to go find the answer somewhere else and copy & paste). And despite all that, it was sad to find that very many candidates, even those with documented years of experience and/or advanced degrees, could not manage to complete a very simple programming assignment. Well... I say "sad" but there is another way of looking at this: it could be that FizzBuzz, "reverse a string", etc., just don't have any particular relevance and that this whole exercise is useless. I mean, if you have a person who's been gainfully employed as a developer for 10 years, and they can't do this, what does that tell you? Maybe it's the test that's wrong. Even though intuitively, I think most developers would believe that anybody who can't do this sort of thing doesn't really know how to program. Anyway, back to the original point directed at the OP: being self-taught isn't really that big a deal, IF you can demonstrate some fundamental level of competency.