Section 4: Bonus – Concurrency and Functional Programming

Companies are very sensitive to topics such as concurrency and functional programming. This chapter covers the most popular questions surrounding these two topics. These four chapters are bonus chapters; the approach of which is not similar to the chapters you've read so far. Owing to the nature of the topics, we will touch upon them briefly, elaborating on the questions asked in interviews on the respective topics. You can find the codes used in the chapter on the GitHub repository, link to which is shared in the technical requirements section of the chapter.

This section comprises the following chapters:

• Chapter 16, Concurrency
• Chapter 17, Functional-Style Programming
• Chapter 18, Unit Testing
• Chapter 19, System Scalability