W3School TIY Editor

#include <iostream> using namespace std; class MyClass { public: static int x; int y; int sum() { return x + y; } }; int MyClass::x = 5; int main() { MyClass myObj1; myObj1.y = 3; MyClass myObj2; myObj2.y = 5; cout << myObj1.sum() << "\n"; cout << myObj2.sum() << "\n"; return 0; }