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

It means what it says.

The "Count" method returns a value type. It's an integer. It will always have a value where it's default value is zero.

Your check really should be:

if (arrTopics.Count() != 0)