Finding the last index of an array

Question

How do you retrieve the last element of an array in C#?

Answer 1

To compute the index of the last item:

int index = array.Length - 1;

Will get you -1 if the array is empty - you should treat it as a special case.

To access the last index:

array[array.Length - 1] = ...

or

... = array[array.Length - 1]

will cause an exception if the array is actually empty (Length is 0).