C#

class Program
{

    static void Main()
    {
        Manager<Person> personManager = new Manager<Person>();

        //adding two people for a test purpose
        personManager.Add(new Person("James","x","Soft"));
        personManager.Add(new Person("Claire", "y", "Illu"));

        Menu mainMenu = new Menu(personManager);
        mainMenu.Display();



    }
}

class Manager<T>
    {
        private readonly List<T> _managedList;

        public Manager()
        {
            _managedList = new List<T>(10);
        }

        public void DumpAllToConsole()
        {
            foreach (T p in _managedList)
            {
                Console.WriteLine(p + "\n");
                
            }
        }

        public void Add(T input)
        {
            if (input.Equals(null)) return;

            _managedList.Add(input);

        }

        public void Remove(T item)
        {
           if (!_managedList.Contains(item)) return;
            _managedList.Remove(item);
        }

        public List<T> GetCopyOfList()
        {
            List<T> list = new List<T>(_managedList);
            return list;
        }
     
    }

class Menu
    {
        private readonly Manager<Person> _personManager;
        private delegate void DictionaryDel();
        private Dictionary<string, DictionaryDel> _action;
        private bool _running = true;
        public Menu(Manager<Person> personManager)
        {
            _personManager = personManager;
            LoadActions();

        }

        void DoAction(string input)
        {
            if (_action.Count == 0) return;
            if (!_action.ContainsKey(input)) return;

            _action[input]();
        }



        void LoadActions()
        {
            _action = new Dictionary<string, DictionaryDel>
                          {
                              {"1", _personManager.DumpAllToConsole},
                              {"2",(() => _running = false)}

        };
        //I personally think using the lambda here is ok...anyone care to tell me otherwise? :P

        }

        public void Display()
        {
            while (_running)
            {
                Console.WriteLine("Press 1 to display all students or 2 to quit");
                string input = Console.ReadLine();
                DoAction(input);
                
            }
        }
    }

thebuzzwright wrote:

"orthogonality"

thebuzzwright wrote:

even though there is allot more work involved it does pay off

Alaric_ wrote:

Where do you attend and what level of student are you currently?

Luc Pattyn wrote:

there are two ways to try and achieve transparency; one is by using the alpha channel, that should allow a blend, so anti-aliased stuff can result in semi-transparent pixels; the other is by setting apart a special color which will be treated as transparent later on; blending here fails as the result is different from the one (or few) special colors.