// Examine this program named ALLVEHIC.CPP for an example that
// uses all three of the classes. It uses the parent class vehicle
// to declare objects and also uses the two child classes to declare
// objects. This was done to illustrate that all three classes can
// be used in a single program. 

// All three of the header files for the classes are included in
// lines 3 through 5 so the program can use the components of the
// classes. Notice that the implementations of the three classes are
// not in view here and do not need to be in view. This allows the
// code to be used without access to the source code for the actual
// implementation of the class. However, it should be clear that the
// header file definition must be available. 

// In this example program, only one object of each class is
// declared and used but as many as desired could be declared and
// used in order to accomplish the programming task at hand.


#include <iostream>
#include "vehicle.h"
#include "car.h"
#include "truck.h"

using namespace std;

int main()
{
vehicle unicycle;

   unicycle.initialize(1, 12.5);
   cout << "The unicycle has " << unicycle.get_wheels() << " wheel.\n";
   cout << "The unicycle's wheel loading is " << unicycle.wheel_loading() << " pounds on the single tire.\n";
   cout << "The unicycle weighs " << 
   unicycle.get_weight() << " pounds.\n\n";

   car sedan;

   sedan.initialize(4, 3500.0, 5);
   cout << "The sedan carries " << sedan.passengers() << " passengers.\n";
   cout << "The sedan weighs " << sedan.get_weight() << " pounds.\n";
   cout << "The sedan's wheel loading is " << sedan.wheel_loading() << " pounds per tire.\n\n";

   truck semi;

   semi.initialize(18, 12500.0);
   semi.init_truck(1, 33675.0);
   cout << "The semi weighs " << semi.get_weight() << " pounds.\n";
   cout << "The semi's efficiency is " << 100.0 * semi.efficiency() << " percent.\n";
   getchar();
   return 0;
}


// Result of execution
//
// The unicycle has 1 wheel.
// The unicycle's wheel loading is 12.5 pounds on the single tire.
// The unicycle weighs 12.5 pounds.
//
// The sedan carries 5 passengers.
// The sedan weighs 3500 pounds.
// The sedan's wheel loading is 875 pounds per tire.
//
// The semi weighs 12500 pounds.
// The semi's efficiency is 72.929072 percent.