Most of my programming courses are taught in Java. I've brought it up to the faculty though about moving us away from being a Java school. The issue that they presented was that the teachers may not be as familiar with C/C++ as they are with Java. My reasoning behind all of it being that Java is not a good learning language since it adds too much abstraction to get a good idea for what your code is actually doing (i.e. memory).
It doesn't particularly matter though as students who are interested in programming will learn what they want on the side.
For your situation though, I'd avoid people who classify themselves as being a 'Java/Python/C programmer'. There are too many languages and too many problems to limit yourself to merely one or two languages. A good programmer will be familiar with at least a few languages and be able to pick up a new language/framework quickly. Basically it breaks down to simply finding someone who has an interest in programming.
Also, I like C.