Program to prepare shopping list using array of objects.

You can refer the following webpage which is giving a beautiful explanation regarding making a programme for this.
It is a tutorial with the heading 'Shopping List Application: Introducing Pointers, References and Dynamic Data Structures.
http://web.csulb.edu/~hill/et286/Week%2012%20-%20Pointers%20and%20More%20About%20Classes.pdf
This tutorial is giving an explanation with good references and examples.

Class is a user defined data type but it behaves like but in data type. So that it is possible to create array of objects of a class. This concept is used in the below program.
Please include iostream.h, conio.h and stdio.h files before class declaration.
//PROGRAM TO PREPARE SHOPPING LIST USING ARRAY OF OBJECTS
#include
#include
#include
class shop
{
private:
char pname[20];
int qty;
float unitprice,bill;
public:
void input(void)
{
fflush(stdin);
cout<<"\nEnter product name\n";
gets(pname);
cout<<"\nEnter product quentity\n";
cin>>qty;
cout<<"\nEnter per unit price of product\n";
cin>>unitprice;
bill=qty*unitprice;
}
void display(void)
{
cout<<"\nProduct name is "< cout<<"\nQuentity purchased is "< cout<<"\nUnit price of "< cout<<"\nTotal bill is "< cout<<"\n************************************************\n";
}
};
void main(void)
{
class shop s1,s2,s3;
clrscr();
cout<<"\nEnter details for first user\n";
s1.input();
cout<<"\nEnter details for second user\n";
s2.input();
cout<<"\nEnter details for third user\n";
s3.input();
clrscr();
cout<<"\nDetails of shopping list is as below\n";
s1.display();
s2.display();
s3.display();
getch();
}