Java Programming for Complete Beginners - Java 16 - Step 06 - Understanding Object Composition - an Exercise - Books and

The video tutorial explains object composition using a book and review example. It covers creating a book class with attributes like ID, name, and author, and a review class with ID, description, and rating. The tutorial demonstrates how to implement these classes, add reviews to a book, and print the book details. The solution involves creating three classes: Bookrunner, Book, and Review, with a focus on the relationship between books and reviews using an ArrayList. The tutorial concludes with a brief look at more complex object-oriented programming concepts.

What are the basic attributes of a book as discussed in the video?

• ID, name, and author

• Title, genre, and publisher

• ISBN, pages, and language

• Cover type, price, and edition

How is the relationship between a book and its reviews described?

• One-to-many

• Many-to-many

• Many-to-one

• One-to-one

What data type is used to store the list of reviews for a book?

• HashSet

• HashMap

• LinkedList

• ArrayList

What method is used to add a review to a book?

• insertReview

• addReview

• appendReview

• includeReview

What is the purpose of the toString method in the classes?

• To initialize the class fields

• To delete an object

• To concatenate and return the class values

• To compare two objects