public boolean compare(Fechas f){
        StringTokenizer cadena = new StringTokenizer(fecha, "/");
        boolean res = false, exit = false;
        StringTokenizer token = new StringTokenizer(f.getCadena(), "/");
        while (token.hasMoreTokens() && cadena.hasMoreTokens() && !exit){
            String tok = token.nextToken(), cad = cadena.nextToken();
            int A = Integer.parseInt(tok), B = Integer.parseInt(cad);
            int C = compareDate(A, B);
            if (C == 1){
                res = true;
                exit = true;
            } else if (C == -1){
                exit = true;
            }
        }
        
        return res;
    }