can anyone solve this please

Question

The class Book contains:

■ The data fields name and price.

■The constructor to initialize the data fields.

■ The setter and getter methods.

■ A method named show that displays the book’s information.

The class Author contains:

■ The data fields name, email, gender, and collection Books-objects.

■ The constructor to initialize the data fields.

■ The setter and getter methods.

■ A method named showdata that displays the author’s information and his/her book information.

■ A method named books_number that returns the number of books this author has. 

Write a main program to test your classes

Answer 1

واجب منزلي؟؟
show your try first!

Answer 2

java program example