// Fig. 4.6: fig04_06.cpp
 // Using a properly initialized constant variable.
 #include <iostream>
 
 using std::cout;
 using std::endl;
 
 int main()
 {
   const int x = 7;  // initialized constant variable
   
   cout << "The value of constant variable x is: "
        << x << endl;
   
   return 0;  // indicates successful termination

} // end main