1. Effective Java by Joshua Bloch

This book is essential for Java developers and provides best practices, tips, and tricks to help you write effective Java code. The third edition includes coverage of new features introduced in Java 8 and Java 9.

2. Java: A Beginner’s Guide by Herbert Schildt

If you’re new to Java programming, this comprehensive guide will help you understand the language basics and kick-start your learning journey. The book is written in an easy-to-understand manner and covers essential concepts in detail.

3. Head First Java by Kathy Sierra & Bert Bates

Head First Java is known for its engaging, interactive approach to learning Java. The book employs visually rich content, puzzles, and quizzes to enable readers to grasp complex topics with ease.

4. Core Java Volume I – Fundamentals by Cay S. Horstmann

Suitable for both beginners and experienced developers, this in-depth book on Java covers the language’s core aspects and provides examples that illustrate its use in practical applications.

5. Clean Code: A Handbook of Agile Software Craftsmanship by Robert C. Martin

In this critically acclaimed book, legendary software expert Robert C. Martin shares his wisdom on writing clean code in any programming language, including Java. Master the art of writing high-quality, maintainable code that delivers robust solutions.

6. Java Concurrency in Practice by Brian Goetz

Multithreading is a key aspect of Java programming, and this comprehensive guide offers valuable insights and strategies for mastering concurrency in your projects. Learn about the latest concurrent API tools provided by the language to optimize performance.

7. Test Driven Development: By Example by Kent Beck

As a pioneer of Agile programming methodologies and test-driven development (TDD), Kent Beck demonstrates real-world examples to illustrate how TDD works with various applications, including those programmed in Java.

8. Java Performance: The Definitive Guide by Scott Oaks

Improve your Java applications’ performance with this in-depth guide. Discover tips and techniques to get the most out of JVM, garbage collection, and other key areas by learning efficient coding methods and performance-enhancing tools.

9. The Well-Grounded Java Developer by Benjamin J. Evans & Martijn Verburg

Aimed at experienced developers looking to expand their knowledge, this book discusses advanced topics such as performance tuning, concurrency, modularization, and functional programming in Java to help you stay ahead in your career.

10. Think Java: How to Think Like a Computer Scientist by Allen B. Downey & Chris Mayfield

Ideal for beginners who want to learn Java while understanding computer science concepts, this book not only teaches the language basics but also encourages critical thinking and problem-solving skills for effective software development.

These ten books on Java will prove immensely helpful for programmers at every level, whether you’re just starting out or looking for advanced concepts and best practices to hone your skills.

Happy reading!