[Solved] what is the value of a static data member after a create more than one instance?

The value of y will be 2.
Here’s how I got it to work in Visual Studio:

#include "stdafx.h"
#include <iostream>

class car
{
public:
    static int x;
    car();
};

int car::x = 0;

car::car(){
    x = x + 1;
}

int main()
{
    car first = car();// here the value of x is 1;
    car tow = car();// here the value of x is 2;
    int y = first.x; // here what the value of y

    std::cout << y;

    int wait;
    std::cin >> wait;
}