As said before, List provides functionality to add elements in a clean way, to do the same with arrays, you have to resize them to accomodate extra elements, see code below:
int[] arr = new int[2];arr[0] = 1;arr[1] = 2;//without this line we'd get a exceptionArray.Resize(ref arr, 3);arr[2] = 3;Regarding your idea with loop:
elements of an array are set to their default values when array is initialized. So your approach would be good, if you want to fill "blanks" in array holding reference types (which have default value null).
But it wouldn't work with value types, as they are initialized with 0!
