c++

#include <iostream>
using namespace std;
 
class GfG {
public:
    static int x;
    GfG() {
        x++;
    }
    // static member function
    // static void printMsg() { cout << "Welcome to GfG!" << x; }
};

int GfG::x = 3; // just like static member function
 
// main function
int main()
{
    GfG obj1;
    cout << obj1.x << endl;
    obj1.x++;
    GfG obj2;
    cout << obj2.x << endl;

    // invoking a static member function
    // GfG::printMsg();
}