Example #1
0
        public void Add(Reward reward)
        {
            if (reward is null)
            {
                throw new ArgumentException();
            }

            _rewards.Add(reward);
        }
Example #2
0
        public void Add(User user)
        {
            if (user is null)
            {
                throw new ArgumentException();
            }

            _users.Add(user);
        }