Answer to Question #276010 in C++ for Asim

Question

Start with the publication, book, and tape classes. Add a base class sales

that holds an array of three floats so that it can record the dollar sales of a particular

publication for the last three months. Include a getdata() function to get three sales

amounts from the user, and a putdata() function to display the sales figures. Alter the

book and tape classes so they are derived from both publication and sales. An object

of class book or tape should input and output sales data along with its other data. Write

a main() function to create a book object and a tape object and exercise their input/output

capabilities.

Answer 1

#include <iostream>
#include <string>
#include <conio.h>
using ​namespace std;
class publication
{
private:
​string title;
​float price;
public:
​void getdata(void)
​{
 ​string t;
 ​float p;
 ​cout << "Enter title of publication: ";
 ​cin >> t;
 ​cout << "Enter price of publication: ";
 ​cin >> p;
 ​title = t;
 ​price = p;
​}
​void putdata(void)
​{
 ​cout << "Publication title: " << title << endl;
 ​cout << "Publication price: " << price << endl;
​}
};
class sales
{
private:
​float s1, s2, s3;
public:
​void getdata(void)
​{
 ​cout << "Enter month 1 sale: $";
 ​cin >> s1;
 ​cout << "Enter month 2 sale: $";
 ​cin >> s2;
 ​cout << "Enter month 3 sale: $";
 ​cin >> s3;
​}
​void putdata(void)
​{
 ​cout << "Month 1 sale: $" << s1 << endl;
 ​cout << "Month 2 sale: $" << s2 << endl;
 ​cout << "Month 3 sale: $" << s3 << endl;
​}
};
class book :public publication,public sales
{
private:
​int pagecount;
public:
​void getdata(void)
​{
 ​publication::getdata();
 ​sales::getdata();
 ​cout << "Enter Book Page Count: ";
 ​cin >> pagecount;
​}
​void putdata(void)
​{
 ​publication::putdata();
 ​sales::putdata();
 ​cout << "Book page count: " << pagecount << endl;
​}
};
class tape :public publication,public sales
{
private:
​float ptime;
public:
​void getdata(void)
​{
 ​publication::getdata();
 ​sales::getdata();
 ​cout << "Enter tap's playing time: ";
 ​cin >> ptime;
​}
​void putdata(void)
​{
 ​publication::putdata();
 ​sales::putdata();
 ​cout << "Tap's playing time: " << ptime << endl;
​}
};
void main(void)
{
​book b;
​tape t;
​b.getdata();
​t.getdata();
​b.putdata();
​t.putdata();
​_getch();