How can I define an array without a fixed size?

Question

I want to define an array without a fixed size.

For example: I have an array with numbers (the user will enter these numbers into the array), and I want to divide it into two arrays. But I don't know ahead of time how many numbers the user will enter.

How can I do this?

Answer 1

Use a List<T>.

Fall back to an ArrayList if generics are not available on your target platform (e.g. .NET Framework 1.1 and lower).