Use of unassigned local variable that is assigned

Question

The below code runs a \'for\' loop to create months 1 through 12 then names each month Jan through Dec according to their number. That pieces compiles fine. At the bottom wher

Answer 1

You know that month can only take the values 1 to 12 inclusive but the compiler is not that smart. If say month is 0 then the variable monthName is never assigned a value and that is what the compiler is complaining about. To fix it simply initialize the variable when you declare it:

string monthName = null;

Also, there is something fishy about your code because monthName is used outside the loop where it is declared but I assume that this is a typo because the code as it stands now will not give you the error you are asking about.