Question

Define a class AUTHOR with the following specifications:

Private members of the class BOOK are:

BOOK NO integer type

BOOKTITLE 20 characters

PRICE float (price per copy)

Define functions:

INPUT() : function to read BOOK_NO,BOOKTITLE, PRICE

PURCHASE(): function to ask the user to input the number of copies to be purchased.

TOTAL_COST() : A function to calculate the total cost for N number of copies where N is passed to the function as argument.

Answer 1

#include <iostream> 

using namespace std; 

class Author 

{ 

public: 

int number_copyes = 0; 

void purchased()  

{ 

cout << "Input the number of copies to be purchased: "; 

cin >> number_copyes; 

} 

float total_cost()  

{ 

return number_copyes * price_float; 

} 

void input() 

{ 

cout << "Enter book_no: "; 

cin >> book_no; 

cout<<"Enter book_tittle: "; 

cin >> book_tittle; 

cout << "Enter price book: "; 

cin >> price_float;

} 

private: 

int book_no; 

char book_tittle [20]; 

double price_float; 

}; 

int main() 

{ 

Author example; 

example.input(); 

example.purchased(); 

cout << "Total cost: " << example.total_cost(); 

return 0; 

}