Interestingly, Java has both styles. You can do

    for (var i : list) {...}

or

    list.forEach(i -> ...);

Except for cases with local variables, I have absolutely no idea which I should prefer. Kotlin makes a cute case for the functional style with it's lambda shorthand:

    list.forEach {
        ...
    }

I've found the functional style helpful for times I want almost add a language feature to avoid boilerplate. The functional style was added without special-purpose language changes, but the iterator version required Java to add Collections, Iterators, and eventually fancy for-each syntactic sugar.