C++ code:
#include "stdafx.h"
#include <iostream>
using namespace std;
//base class Sale
class Sale
{
//variable and function declaration
public:
double price;
public:
//constructor
Sale(double p)
{
price = p;
}
virtual void bill(){};
};
//Derived class
class MailorderSale : public Sale
{
private:
double shipping_charge;
public:
MailorderSale(double p, double sc) : Sale(p)
{
shipping_charge = sc;
}
void bill()
{
price = price + shipping_charge;
};
};
//Class for Discount
class DiscountSale : public Sale
{
private:
double discount;
public:
DiscountSale(double p, double d):Sale(p)
{
discount = d;
}
void bill()
{
price = price - discount;
};
};
//main
int main()
{
DiscountSale discount(11,10);
MailorderSale mail(8,2);
if ( mail.price < discount.price)
{
cout << "\n Mailorder price less than Discount price" << endl;
}
else
{
cout << "\nMailorder price greater than or equal to Discount price" << endl;
}
system("pause");
return 0;
}
Output:
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