Answer to Question #182440 in C++ for P. Gokul

Question

Define a class Book with the following specifications:

Private members of the class BOOK are

BOOK NO integer type BOOKTITLE 20 characters PRICE float (price per copy) TOTAL_COST() A function to calculate the total cost for N number of copies where N is passed to the function as argument.

Public members of the class BOOK are

INPUT() function to read BOOK_NO, BOOKTITLE and PRICE. PURCHASE() function to ask the user to input the number of copies to be purchased. It invokes TOTAL_COST() and prints the total cost to be paid by the user.

Answer 1

#include<iostream.h>
#include<conio.h>

class book
{
private:
            int bno;
            char btytle[20];
            float price;
           float total_cost(int x)
            {
                    float total;
                    total=price*x;
                    return total;
             }
public:
          void input()
               {
                           cout<<"\nEnter book no\tbook tytle\tprice of the book"<<"\n";
                           cin>>bno;
                          cin>>btytle;
                           cin>>price;
            }
          void purchase()
          {
            cout<<"Enter the number of copies to be purchased"<<"\n";
             int n;
            cin>>n;
            float total;
           total=total_cost(n);
             cout<<"Total cost to be paid by the user:"<<total<<"/- rupees"<<"\n";
         }
};
void main()
{
   clrscr();
    book b;
    b.input();
   b.purchase();
  getch();
}