class DivSales
 {
     private:
         static int total;
     public:
         int qArr[4];     // here is the declared array I input the 4 integers

     static int totalSale()
     {
         return total;       // here is the function to return total.
     }

     void fourSale(int first, int second, int third, int fourth)       //these integers are inputted by user.
     {
         if (valid(first) == true)       //this and below is an example of how I am adding to the total variable. Imagine 3 more of these.
         {
             qArr[0] = first;
             total += first;
         }

 }

int DivSales::total = 0;
int main()
{
     DivSales div1;      //here i declare an object. I have 5 more but I will display two for example purposes.
     div1.fourSale(6543, 3000, 4000, 5000);      // here i input the 4 integers

     cout << div1.totalSale << endl << endl;       // here I try to print out the total however it prints the error I was talking about.

}