Ereditarietà class point : int -> object val mutable x : int method get_x : int method move : int -> unit end # class colored_point x (c : string) = object inherit point x val c = c method color = c end;; class colored_point : int -> string -> object val c : string val mutable x : int method color : string method get_x : int method move : int -> unit end # let p = new colored_point 5 red ;; val p : colored_point = # p #color;; - : string = red