Program to illustrate static members in class

#include <iostream.h>
#include<conio.h>
class test
{
    int code;
    static int count;    // static member variable
    public :
    void setcode (void)
    {
        code = ++count;
    }
    void showcode (void)
    {
        cout << "Object number : " << code << "\n";
    }
    static void showcount(void)        // static number function
    {
        cout << "Count : "<<count<<"\n";
    }
};
    int test :: count;
    int main()
    {
        test t1, t2;
        clrscr();
        t1.setcode();
        t2.setcode();

        test :: showcount();    // accessing static function

        test t3;
        t3.setcode ( );

        test :: showcount();

        t1.showcode();
        t2.showcode();
        t3.showcode();
        getch();
    }