class DayCollection
{
string[] days = { "Sun", "Mon", "Tues", "Wed", "Thurs", "Fri", "Sat" };
private int GetDay(string testDay)
{
for(int j = 0; j < days.Length; j++)
{
if (days[j] == testDay)
{
return j;
}
}
throw new System.ArgumentOutOfRangeException(testDay, "testDay must be in the form \"Sun\", \"Mon\", etc");
}
public int this[string day]
{
get
{
return (GetDay(day));
}
}
}
class Program
{
static void Main(string[] args)
{
DayCollection week = new DayCollection();
System.Console.WriteLine(week["Fri"]);
System.Console.WriteLine(week["AAA"]);
}
}