Hello devs, just wanted to write a short post about the Gumroad Day sale and the once-in-a-lifetime opportunity to buy my books for just 1$ (minimum). 

Yes, Gumroad Day is back and its today on 4th April. It's back after 3 years. Last time I wrote this post on 2021. In this day, Gumroad waive off all his fees and encourage creators to give big discount, much like Black Friday, Prime Day or Cyber Monday.

So, For #GumroadDay, both my books, Grokking the Java Interview and Grokking the Spring Boot Interview are 'Pay What You Want, $1 minimum. Today only.

Yes, the offer is only valid until midnight 4 April because after that Gumroad will start charging fee and all the discount will go way.

Normally, my books are priced $20 but now you have a unique chance to get them for just $1

- Grokking the Java Interview, $19.9 (normal price)

- Grokking the Spring Boot Interview, $19.9 (normal price)

- Grokking the SQL Interview ($20)

- Grokking the Java Interview Volume 2 ($20)

- 250+ Spring Certification practice questions ($19.9)

- 250+ Java 17 Certification Practice Questions ($20)

More than 2000+ Java developers have bought so far. Go see what they look like!

Here is the link - https://gumroad.com/javinpaul/

When I run this sale last time on Gumroad Day 2021. More than 100 people have already bought my books in few hours and given only a few hours are left before #GumRoadDay is over, I suggest all of my blog readers use this opportunity.

As I said, Gumroad Day is a special day organized by Gumroad where Creators will keep all the earning, all the fees like transaction fee, Paypal fee will be paid by Gumroad. Many creators are offering their courses for huge discounts so that more people can benefit from their work.

What does Grokking the Java Interview book covers?

This was my first book in 10 years of blogging and it contains all the essential core Java topics you need to prepare to crack a Java developer interview. This is a 150+ pages book that contains frequently asked Java interview questions and their answers.

Here is the list of core Java topics covered in this book:

1. Object-Oriented Programming

2. Java Fundamentals

3. Java Collections

4. Java Multithreading

5. Garbage Collection

6. JDBC

7. Generics

8. Design PAtterns

9. Telephonic Interview Questions 

You can use this book to prepare for the Java interview in a guided and structured way. Java is vast and it's tough to crack Java interviews without proper preparation and this book helps you there.

Whether you are a beginner looking for your first job or an experienced Java developer looking for your next job this book and questions will help you.

Here is the link to learn more about the book - Grokking the Java Interview

What does Grokking the Spring Boot Interview covers?

This was my second book to help Java developers in their interview preparation and this book covers Spring Framework, the most important skill for Java developers.

When I released my first book, a lot of my readers and followers message me that to write a similar book but on the Spring framework.

Since Spring is also vast like Java, it took me 5 months to write this book but I am very happy that it turns out to be a great resource for anyone preparing for Java + Spring boot interview as well for Spring certification.

This is a 250+ pages book that contains frequently asked Spring, Spring Boot, and Spring Security interview questions and their answers.

Here is the list of Spring Framework topics covered in this book:

 1. Container, Dependency, and IOC

2. Spring Bean Lifecycle

3. Aspect-Oriented Programming (AOP)

4. Spring MVC

5. Spring Boot Intro

6. Spring Boot Auto Configuration

7. Spring Boot Starter Dependency

8. Spring Boot Actuator

9. Spring Boot CLI

10. Spring Boot Testing

11. Spring Cloud Questions

12. Spring Data JPA

13. Spring Security

You can use this book to prepare for the Spring Boot interview in a guided and structured way. Just like Java, Spring Framework is also vast and it's tough to crack Spring Boot interviews without proper preparation and this book helps you there.

Whether you are a beginner looking for your first job or an experienced Java developer looking for your next job this book and questions will help you.

Here is the link to learn more about the book - Grokking the Spring Boot Interview

What does Grokking the SQL Interview cover?

This is my third book in the Grokking series and this book cover SQL and database related questions. These are useful not just for Java developers but also for Data Scientists, Data Analyst, and any other software developer who has to work on SQL and database.

Here are the topics covered in this book:

1. SQL and Database Basics

2. SQL JOIN

3. Indexes

4. GROUP BY and Aggregate Functions

5. Stored Procedure

6. Trigger and View

7. SQL Queries from Interviews

8. DB Normalization

9. Transaction

10. Window Function

11. CTE

12. SQL vs NoSQL

13. DB specific ques

Whether you are a beginner Software Engineer looking for your first job or an experienced Java developer or Data Scientist looking for your next job this book and questions will help you.

Here is the link to learn more about the book - Grokking the SQL Interview

Apart from that I have also wrote books on Java and Spring Certifications which contains practice questions and their answers with explanation. If you are preparing for Java or Spring Developer certification then you can use this books to prepare better.

That's all guys, this post means to be short because Gumroad day is just for one day** and the prices will revert back to normal tomorrow. If you are preparing for Java , SQLand Spring Boot interviews then this is your best chance to grab your copy of my books. 

Here is the link - https://gumroad.com/javinpaul/