// Ex9_15.cpp : main project file.
  
  include <stdafx.h>
  include <Box.h>                       // For Box and IContainer
  include <GlassBox.h>                  // For GlassBox (and Box and IContainer)
  include <Stack.h>                     // For the stack class with nested struct Item 
  
  using namespace System;
  
  int main(array<System::String ^> ^args)
  {
   array<IContainer^>^ containers = { gcnew Box(2.0, 3.0, 4.0),
                                      gcnew GlassBox(2.0, 3.0, 4.0),
                                      gcnew Box(4.0, 5.0, 6.0),
                                      gcnew GlassBox(4.0, 5.0, 6.0)
                                    };
  
    Console::WriteLine(L"The array of containers have the following volumes:");
    for each(IContainer^ container in containers)
      container->ShowVolume();           // Output the volume of a box
  
    Console::WriteLine(L"\nNow pushing the containers on the stack...");
  
    Stack^ stack = gcnew Stack;          // Create the stack
    for each(IContainer^ container in containers)
      stack->Push(container);
  
    
    Console::WriteLine(
            L"Popping the containers off the stack presents them in reverse order:");
    Object^ item;
    while((item = stack->Pop()) != nullptr)
      safe_cast<IContainer^>(item)->ShowVolume();
  
    Console::WriteLine();
    return 0;
  }