string s = Enum.GetName(typeof(Day), 4);
Console.WriteLine(s);

Console.WriteLine("The values of the Day Enum are:");
foreach (int i in Enum.GetValues(typeof(Day)))
    Console.WriteLine(i);

Console.WriteLine("The names of the Day Enum are:");
foreach (string str in Enum.GetNames(typeof(Day)))
    Console.WriteLine(str);