Question

Develop an OOP program to create library information system containing the following information
using multilevel inheritance approach:
First class has following data:
a) Name_of_author
b) Title_of_book
c) Publisher_name
Second class has following data:
a) Year_of_publication
b) Cost_of_book
Third class will display all the contents of both above classes

Answer 1

Answer:

which question I gave you answer