5 Top Java books for experienced developers

1. Functional programming in Java

Author: Venkat Subramaniam

Knowledge of multiple programming frameworks, such as procedural, Object-Oriented, and Functional, is one of the traits of an experienced programmer. Since Java 8 introduces functional programming to the Java world, mastering the skill of functional programming becomes a must for advanced Java developers. To master this skill set, experienced Java developers must get their hands on Functional programming in Java books. This book covers about the same, hence, helping experienced developers learn about the programming language in depth.

2. Refactoring

Author: Martin Fowler

A programmer's signature is the code. All of this training is for writing code that will stand the test of time. Refactoring is art for changing low-quality code into high-quality code, and advanced Java developers are expected to write high-quality code. This book will show you how to refactor code without causing it to break. Along the way, you'll learn about unit testing and how to design effective tests that cover your code's most important features.

3. Clean Code

Author: Robert C. Martin

This is a wonderful book for any programmer who wants to master the art of software development and programming, not just Java developers. This book, written by Robert C. Martin, focuses on the frequent mistakes that programmers and coders make and how they might avoid them. In addition, there are other chapters in this book that will assist prospective programmers and coders in understanding the importance of producing clean code. All of these teachings are accompanied by examples that help with learning.

4. Java by comparison: Become a Java craftsman in 70 examples

Author: Simon Harrer, Jorg Lenhard, and Linus Dietz

This is another excellent book for experienced Java programmers who are serious about refining their Java skills and becoming Java specialists. This book gives you practical guidance on how to improve your coding style by using tiny, easily accessible examples that compare bad code to better code. You'll discover useful tips and tricks along the way, as well as typical flaws that any experienced Java programmer should be aware of.

5. Effective Java

Author: Joshua Bloch

Because of the content, clarity, message, style, and authority of Joshua Bloch, who wrote the API for the Java Collection framework and several classes in java.lang package, this is also the most recommended book for senior Java developers.