That's a shame. And I agree. I guess the author should provide translations in C or Java or whatever along with his examples as far as possible. I understand his Haskell examples, but that's preaching to the choir.

I read a blog post were somebody re-implemented some examples of Haskell concepts in C. I can't remember the URL, but searching for "Monads in C" or "Monads in Java" etc brings up some interesting posts. E.g. http://blog.tmorris.net/maybe-monad-in-java/