Question about a question (irreducible representations of a semidirect product) In the question 
Classifying the irreducible representations of $\mathbb{Z}/p\mathbb{Z}\rtimes \mathbb{Z}/n \mathbb{Z}$
the author is talking about irreducible representations of a semi-direct product. Does he mean representations over $\mathbb{C}, \mathbb{Z}, \mathbb{F}_p, \ldots$? Or would the way to construct them be the same?
I'm not sure if it is allowed to re-ask a question. If not. I'm sorry.

As Jack Schmidt said: "The old answer is talking about $\mathbb C$, though the ideas can be applied more generally."
(It seems this question has been answered in the comments; in order for the question to be marked as answered, I copied the answer above and made this CW.)
