Java algorithm - Sum of all multiples of 3 or 5 that are below a number n

Sometimes, use of simple algebra improves performance like anything. Let's explore below problem and its probable solution and observer how performance is increased multiple times by just using the simple algebra.

Book Review: Mastering Microservices with Java

Though micro services concept is not new, it has created a huge buzz in recent year. It is difficult to buy a book that explains micro services and implementation in Java in a easy way. I recently, came across this book titled "Mastering Microservices with Java" by Sourabh Sharma from Packt Publishing, and found it very informative and practical. Let me share you, how it helped me.