public void Garer(Voiture c, uint nbrPlace)
        {
            if (nbrPlace > cars.Length)
            {
                throw new HorsParking();
            }

            if (cars[nbrPlace] != null)
            {
                throw new Exception("Place Non Libre");
            }

            cars[nbrPlace] = c;
        }
        public Voiture Sortir(uint nbrPlace)
        {
            if (nbrPlace > cars.Length)
            {
                throw new HorsParking();
            }

            if (cars[nbrPlace] == null)
            {
                throw new Exception("Place Libre");
            }

            Voiture c = cars[nbrPlace];

            cars[nbrPlace] = null;
            return(c);
        }
        public override string ToString()
        {
            string res = $"{GetType().Name} {{\n\tNbrPlaces = {nbrPlaces};\n\tVoitures = {{\n";

            for (int i = 0; i < cars.Length; i += 1)
            {
                res += $"\t\tPlace {{\n\t\t\tNumero {i};\n";
                Voiture c = cars[i];
                if (c == null)
                {
                    res += $"\t\t\tVoiture = null (Place Vide);\n";
                }
                else
                {
                    res += $"\t\t\tVoiture = {string.Join("\t\t\t\t", c.ToString().Split("\t"))}\t\t\t}};\n";
                }

                res += "\t\t};\n";
            }
            res += "}\n";

            return(res);
        }