public static ReturnResponse Get(int returnCode)
        {
            ReturnResponse returnValue = new ReturnResponse();

            switch (returnCode)
            {
            case ReturnConstant.FAILURE:
                returnValue.Status = new ReturnStatus(ReturnConstant.FAILURE.ToString(), ReturnConstant.FAILURE_MESSAGE);
                break;

            case ReturnConstant.INVALID_USER:
                returnValue.Status = new ReturnStatus(ReturnConstant.INVALID_USER.ToString(), ReturnConstant.INVALID_USER_MESSAGE);
                break;

            case ReturnConstant.INVALID_PASSWORD:
                returnValue.Status = new ReturnStatus(ReturnConstant.INVALID_PASSWORD.ToString(), ReturnConstant.INVALID_PASSWORD_MESSAGE);
                break;

            case ReturnConstant.USER_NOT_ALLOWED_TO_LOGIN:
                returnValue.Status = new ReturnStatus(ReturnConstant.USER_NOT_ALLOWED_TO_LOGIN.ToString(), ReturnConstant.USER_NOT_ALLOWED_TO_LOGIN_MESSAGE);
                break;

            //CLASSES AND SUBJECTS
            case ReturnConstant.CLASS_SUBJECT_NOT_FOUND_QUESTION_AVAILABLE:
                returnValue.Status = new ReturnStatus(ReturnConstant.CLASS_SUBJECT_NOT_FOUND_QUESTION_AVAILABLE.ToString(), ReturnConstant.CLASS_SUBJECT_NOT_FOUND_QUESTION_AVAILABLE_MESSAGE);
                break;

            case ReturnConstant.CLASS_SUBJECT_ALL_NOT_FOUND:
                returnValue.Status = new ReturnStatus(ReturnConstant.CLASS_SUBJECT_ALL_NOT_FOUND.ToString(), ReturnConstant.CLASS_SUBJECT_ALL_NOT_FOUND_MESSAGE);
                break;

            default:
                returnValue.Status = new ReturnStatus(ReturnConstant.INVALID_OPERATION.ToString(), ReturnConstant.INVALID_OPERATION_MESSAGE);
                break;
            }
            returnValue.Result = "[]";
            return(returnValue);
        }