Question

Can I access static member variables of a class using dot notation or should I stick in access operator which is double colon?

Answer 1

If you have an instance variable you may use dot operator to access static members if accessible.

#include <iostream>
using namespace std;

class Test{
    public:
        static int no;
};

int Test::no;
int main(){
  cout << "\n" << Test::no;
  Test::no=100;
  Test a;
  cout << "\n" << a.no;
 return 0;
}