Why am I getting “CS0472: The result of the expression is always true since a value of type int is never equal to null of type int?”

Question

string[] arrTopics = {\"Health\", \"Science\", \"Politics\"};

I have an if statement like:

 if (arrTopics.Count() != null)
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Answer 1

Like the error says, int can never be null. I'd change the code to

if (arrTopics != null && arrTopics.Any())

Or even more efficient if you know arrTopics is an array and never null is

arrTopics.Length != 0