Maybe it is just me, but at least to me, a loop and an if (and an accumulating list) is far, far, far simpler (and thus, clearer) than... creating a new anonymo

Maybe it is just me, but at least to me, a loop and an if (and an accumulating list) is far, far, far simpler (and thus, clearer) than... creating a new anonymous subclass from a templated class with an overriden method and invoking some other method? (at least, I think that's what's going on, I am not sure. A bad sign). And this is not because I don't get filter and functional programming (coming from pythons listcomps, having used haskell and lisp)