int[] xs = {1,2,3,4,5};
for (int x : xs)
System.out.println(x*x);

F#:

[| 1..5 |] |> Array.map (fun x -> x * x) |> Array.iter (printfn “%i”)

I’d rather write those examples as gathering values in a list / colleciton / enumeration / sequence (lazy). (as you stated in your first paragraph on map). That would be much more interesting because the java version for that is much more noisy than the oder languages:

int[] numbers = { 1,2,3,4,5};
Collection result=new ArrayList(5);
for (int number : numbers) {
result.add(f(number));
}

private int f(int value) {
return value*value;
}

Here the groovy version for map:

1.upto(5).collect{ it*it }
and clojure
(map #(* % %) (range 1 5))

THAT’s concise

If you want to print it directly:
groovy: 1.upto(5).each{ println it*it }
clojure: (map #(println (* % %)) (range 1 5))

Cheers Michael