Question

Imagine a publishing company that markets both books and audio-cassette versions of its works. Create a class publication that stores the title (a string) ad price (type float) of a publication. From this class derive two classes: book, which adds a page count (type int); and tape, which adds a playing time in minutes (type float). Each of these three classes should have a getdata() function to get its data from the user at the keyboard, and a putdata() function to display its data.

Write a main() program to test the book and tape classes by creating instances of them, asking the user to fill in their data with getdata(), and then displaying the data with putdata().

Answer 1

include <iostream.h>

include<conio.h>

include<stdio.h>

class publication

{

char title[20];

float price;

public: void getdata()

{

cout<<"Enter title: "; gets(title);

cout<<"Enter price: "; cin>>price;

}

void putdata()

{

cout<<"Title: "<>page_count;

}

void putdata()

{ publication::putdata();

cout<<"Page count: "<<page_count<<endl;

}

};

class tape:public publication

{

float play_time;

public:

void getdata()

{ publication::getdata();

cout<<"Enter Play time: ";

cin>>play_time;

}

void putdata()

{ publication::putdata();

cout<<"Play time: "<<play_time<<endl;

}

};

void main()

{ clrscr();

book b;

tape t;

b.getdata();

b.putdata();

t.getdata();

t.putdata();

getch();\

}