Alternatively, getting started with Java you quickly hit polymorphism, inheritance, getters-and-setters, and null object handling. And yet everyone in my intro

Alternatively, getting started with Java you quickly hit polymorphism, inheritance, getters-and-setters, and null object handling. And yet everyone in my intro to CS class in uni managed to pick up Java within a week or two. Haskell is a bit more involved than Python, but not more involved than most languages.