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)
<         


        

Answer 1

null represents the absence of any value, not the number 0. And as the message says an int can never be null since it's neither a reference type nor a nullable value type and thus always has some value.