Get Excellent Grip on OOP using Java TODAY! – OOP Concepts Booster

Master OOP using Java with NEW Approach, so you can stand out from the crowd. In fact, you’ll have better knowledge than 99% people. That’s for sure.

Watch this video and Try answering Sample OOP Questions below.


The book OOP Concepts Booster (designed uniquely after decades of using industrial OOP), teaches you...

crystal-clear concepts, pitfalls and proper utilization of oop features besides clarifying doubts, that you don’t find in tutorials book or on internet.

It contains practical notes on oops topics, and 25 Q&A with Real-Time Examples to help you master object-oriented programming concepts easily.

Could you just try to answer below Sample Questions from the book?

Q-1) What can be the issue if you delete a base class method if a subclass overrides it?

Q-2) How do polymorphism and inheritance provide extensibility?

Q-3) How does encapsulation provide security?

Q-4) Why do you need to overload the method if methods with different names do the task as well?

Q-5) If we can’t create an object of an abstract class, then what is its purpose? What can be the scenarios of uses?

Q-6) Are both the concepts of encapsulation and abstraction really related to hiding complexities? Can you Justify your answer?

Q-7) What are impacts if I don’t follow dictum – “Code to the interface, not to the implementation”?

Q-8) Both the composition and aggregation follow the Has-A relationship, then how are they different? Which one should you choose when?

Q-9) In what scenarios inheritance is indispensable? Is it true that inheritance is used for code reuse only? If not, what are the other factors?

Q-10) How can inheritance break the client code, but composition cannot? Illustrate the scenario example of this.


  • 1)You’ll have in-depth and fluid clean clarity on concepts like loose coupling, aggregation and composition etc…in addition to other OOP topics.
  • 2)You’ll be able to write better software which is easier to change and scale.
  • 3)Your mind will stop raising doubts about OOP concepts.

Do you want to become a prominent coder, so you can advance your programming career like never before?

Master oops in the time it takes to read and practice this book OOP Concepts Booster.

OOP Concepts Booster

Rakesh is a software professional having 18+ years of experience with industrial OOP, designing and developing quality software and Author of the 2 books.

Don’t Take My words. See what your friends Say!

View Reviews on Amazon


This is an ultimate book to skyrocket the OOP concepts and coding skills. What makes this book special is, the author has made sure that the readers will find the content familiar with their logical concepts, and novice readers get industry-level knowledge. It has been lots of learning and fun.


Simply, this is an amazing book to leverage the OOP concepts and enhance coding skills. Rakesh has beautifully clarified all the confusing elements of the OOP in a very simple manner that is easy to consume. I loved his dedication to delivering the best for the readers’ benefits. He has gone through multiple iterations with various novice programmers to make the answers of complicated and confusing elements simple to consume and that was awesome. I enjoyed the book a lot and it been a great learning experience.