/// <summary>
        /// Sets the dial on the given rotor
        /// </summary>
        public void SetRotorDial(int rotorNumber, char rotorSetting)
        {
            switch (rotorNumber)
            {
            case 1:
                _rotor1.SetDial(rotorSetting);
                break;

            case 2:
                _rotor2.SetDial(rotorSetting);
                break;

            case 3:
                _rotor3.SetDial(rotorSetting);
                break;

            default:
                break;
            }
        }