Java interfaces map to Haskell records

A toy example showing a Java-to-Haskell translation in which an interface in Java is rewritten as a record in Haskell

Gabriel Gonzalez recently wrote an article entitled Advice for Haskell beginners and I was mildly surprised to see that out of four tips, one was:

Avoid typeclass abuse

On second thought, though, this is important advice. In retrospect, my inclination to use typeclasses in inappropriate ways was a big problem in my earlier Haskell days. I made this mistak…