If it were me, I'd put down any languages or technologies that I am actually useful in. In my case, I was
very entry-level, so I only knew Java and was only looking for a position in that one language, so this issue was not a concern of mine.
I'd emphasize one thing though - don't fill your resume with skills that nobody would pay you for. What I mean is this: don't put Visual Basic on your resume if all you've done is written the code for "Hello World."
And on the other hand, if you're skilled in a great many languages and technologies, I figure there comes a point where
you should thin out the list and focus on your key strengths and the skills you think a particular employer is looking for.