#include <iostream.h>


int x = 99;

class myClass
{
public:

   double x;

   void f1()
   {
      double x;

      x = 1111.0;
   }

   void f2()
   {
      double x;

      this->x = 2222.0;
   }

   void f3()
   {
      x = 3333.0;
   }

   void f4()
   {
      ::x = 4444.0;
   }

};


int main(int argc, char *argv[])
{
   myClass a;

   a.x = 9999;

   a.f1();
   cout << "After a.f1(): x = " << x << ", a.x = " << a.x << endl << endl;
   a.f2();
   cout << "After a.f2(): x = " << x << ", a.x = " << a.x << endl << endl;
   a.f3();
   cout << "After a.f3(): x = " << x << ", a.x = " << a.x << endl << endl;
   a.f4();
   cout << "After a.f4(): x = " << x << ", a.x = " << a.x << endl << endl;
}