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Sunday, April 26, 2020

Top 10 Advanced Java books for Intermediate and Experienced Developers

Hello guys, once you learn Java and done with reading some of the best known introductory books on Java and have a couple of years of experience under your belt, you would be hungry to transition from an intermediate Java developer to an expert Java programmer, also known as Java guru. This transition is not smooth, and I have seen many Java developers having 2 to 6 years of experience stuck where they are and have absolutely no knowledge of advanced topics like JVM internals, Concurrency, Garbage collection, and Performance tuning.
As an expert Java programmer, you must be good at Multi-threading and Concurrency, knows good detail about JVM internals and Garbage collection algorithms, have a strong understanding of Java Collection API and Concurrency utilities, Java NIO and NIO 2 and object-oriented design patterns.

To add to that knowledge of Unit testing, built tools, best practices, release management, and advanced debugging skill is also absolutely must. You can add lambda expressions, streams, and other Java 8 features into that list as well.

In this article, I will share 10 books that will help you to become an Expert Java Programmer. I highly recommend these books for Intermediate Java programmers and those who are having 2 to 5 years of experience, knows Java, have done a couple of project in Java and aspire to become expert Java programmers.




10 Advanced Java Books for Experienced Programmers

These are the 10 books I would recommend to any advanced Java developer or a programmer who wants to learn Java and programming better.

1.  Optimizing Java

One attribute which distinguishes Java programmer to Senior Java programmer is a good understanding of JVM, Garbage Collection, and experience of performance tuning, and this is currently the best book available in the market.

There are many books which focus mainly on Garbage collections and performance but this one describes many more aspects of JVM internals like threading, JVM internal memory representation, bytecode, JIT compilers, etc. Moreover, the book contains an overview of many useful tools that can help you on a daily work with JVM.

If you need some help and want to see things, in reality, I also suggest you check out the Java Application Performance and Memory Management course by Matt Greecroft and Virtual Programmers. It's a wonderful course to learn how to analyze heap dump, improve Java performance, understand GC logs, and solve memory leaks. I highly recommend it.

Top 10 Advanced Java books for Intermediate and Experienced Developers



2. Effective Java

Your transition from Java developer to advanced Java developer is not complete until you read this masterpiece. This is the most recommended book for senior Java developers because of the content, clarity, message, style, and authority of Joshua Bloch, who has written API for Collection framework in Java, several classes in Java.lang package.


Best book to learn Java Best Practices




3. Java Concurrency in Practice

Another attribute of an experience Java developer is a sound knowledge of concurrency and multi-threading. It's a complicated topic to master, and that's why you need an accurate and authoritative book on the subject. Java programmers are lucky that they got this book from Brian Goetz.

The only thing which concerns me is that the concepts itself are not so easy so many times programmer finds it really difficult to read a book like this. If you also face the same problem, I suggest you join the Java Concurrency in Practice Bundle course by Heinz Kabutz, a Java Champion and one of my favorite instructors.


Best book to learn Java Concurrency




4. Java By Comparison: Become a Java Craftsman in 70 Examples

This is another great book for experienced Java programmers who really want to hone their Java skills and become a Java expert. This Java book is not about syntax and semantics but how to do real-world things in a better way. If you want to become a professional Java developer which every company wants to hire, then this book is for you.

This book provides hands-on advice to level up your coding style through small and understandable examples that compare flawed code to an improved example. In the process, you will learn handy tips and tricks, as well as common bugs an experienced Java programmer needs to know.


Top 10 Java Programming Books from Beginner to Expert - Best of lot, Must Read



5. Head First Design Pattern

Apart from GC, Multi-threading, and Collections API, another aspect of advanced Java developer is good knowledge of design patterns and how to use them in Java programs. I have read a couple of books on design patterns, including all-time classic GOF design patterns, but no one has connected to me better than Head First.

It could be style, diagrams, silly images, or whatever, but I really owe my knowledge of design patterns to this book.

I still remember when I first read a couple of pages of this book explaining why composition is better than Inheritance, I was convinced that this is the book I must-read. It's been many years, but I still have a copy of the Head First Design Pattern and keep looking at when I feel bored or need to revise my design pattern skills.

You can also combine this book with the Design Pattern in Java course by Dmitri Nestruk on Udemy to learn about the modern implementation of classic Java design patterns.


Best book to learn Java Design Patterns



6. Well-grounded Java Developer

It's not enough for an advanced Java developer to know just Java in today's world. Knowledge of other JVM languages like Scala, Groovy, and Closure helps a lot. Actually, If you want to start your transition from Java programmer to advanced Java programmer, this is the book you should read.

This is the must-have book for modern-day Java developers. It explains new changes in Java, including those in JDK 7 like try-with-resources, NIO2.0, and concurrency changes, but most importantly, It explains why it is so expensive to add new features to the JVM.


good book for modern Java developers



7. Clean Code

This is really an excellent book and my favorite one too. This is not just for Java developer but any programmer who wants to learn the trade of software development and programming.

Uncle Bob Martin needs no introduction, he is one of the most respected names in the Object-Oriented Programming world, and given Java is the best OOP language we have and to add on that Clean Code examples are in Java itself. This is a close cousin of Code Complete, which is more suited for our C++ friends.

Best book to learn Coding in Java



8. Refactoring

The code is the signature of a programmer. All this learning is to write code that can withstand the test of time. Advanced Java developer is expected to write high-quality code, and refactoring is art for turning a low-quality code into high-quality code.

One additional responsibility of many Senior Java programmers is to keep code quality of the project in check by continually doing code review and refactoring junior programmer's code.

Best book to learn Java Code Refactoring


9. Test-Driven

You cannot become an advanced Java developer until you master the art of Unit testing and test-driven development. Everybody loves a programmer who does due diligence, writes a test, and works hard to improve the quality of code.

There was a time when Unit testing was considered additional, but not now. IF you are a developer, you are expected to write good quality Unit tests. Java world is blessed with so many useful open-source frameworks for Unit testing like JUnit, Mockito,

Best book to learn Test Driven Development in Java


10. Functional Programming in Java

Another quality of an experienced programmer is knowledge of multiple programming paradigms like Procedural, Object-Oriented, and Functional. Since Java 8 brings functional programming to Java world, it becomes imperative for advanced Java developers to master the art of functional programming.

Java 8 is already established stand, and I believe it will be mandatory for every Java developer very quickly in the coming years. If you need an online course for some hands-on experience then you can also check out Learn Java Functional Programming with Lambda and Stream course by Ranga Karnam on Udemy.

Best book to learn Functional Programming In Java



That's all about this list of best advanced Java books for intermediate and experienced programmers. This list is not for beginners as they won't teach you how to write hello world in Java, neither they will explain to you how to compile and run your Java program. These books for those Java programmers who already working in Java and aspire to learn Java in depth. In order to deeply learn a programming language, one book is not enough, you probably need to learn.

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Thanks for reading this article so far. If you find these classic Java books useful, please share it with your friends and colleagues on Facebook and Linkedin. If you have any questions, suggestions, or feedback, please drop a note.


P. S. - If you are looking for some courses to learn Java in-depth, check out this list of Top 10 Java Courses for both beginners and intermediate developers on Medium. It contains courses to learn Java from scratch as well as master useful topics like Collections, Concurrency, and JVM internals.

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