What happens when this Java program is executed? class IntRef final int n; IntRef (int n) this.n class C IntRef r C (IntRef r) this.rr: public class Foo static void f (C c) public static void main (Stringl args) Int Ref s = new IntRef (2); f (c)i System.out.println (s.n c.r.n) "12" is printed (plus a newline)