// Ex7_04.cpp
  // Using a constructor
  include <iostream>
  using std::cout;
  using std::endl;
  
  class CBox                             // Class definition at global scope
  {
    public:
      double m_Length;                   // Length of a box in inches
      double m_Width;                    // Width of a box in inches
      double m_Height;                   // Height of a box in inches
  
      // Constructor definition
      CBox(double lv, double bv, double hv)  
      {
        cout << endl << "Constructor called.";
        m_Length = lv;                   // Set values of
        m_Width = bv;                    // data members
        m_Height = hv;
      }
  
      // Function to calculate the volume of a box
      double Volume()
      {
        return m_Length* m_Width* m_Height;
      }
  };
     
  int main()
  {
    CBox box1(78.0,24.0,18.0);           // Declare and initialize box1
    CBox cigarBox(8.0,5.0,1.0);          // Declare and initialize cigarBox
  
    double boxVolume = 0.0;              // Stores the volume of a box
  
    boxVolume = box1.Volume();           // Calculate volume of box1
    cout << endl
         << "Volume of box1 = " << boxVolume;
  
    cout << endl
         << "Volume of cigarBox = "
         << cigarBox.Volume();
  
    cout << endl;
    return 0;
  }