#Java concurrency in practice pdf github code

They were not made aware of how volatile can guarantee the visibility of what was done by one thread prior to accessing volatile variables to another thread etc.

#Java concurrency in practice pdf github code

They were not told about the Java memory model and how volatile variables can affect the ordering of code and computing instructions behind code by JIT and JVM for optimization which could result in subtle logical bugs. Many programmers even with 4 to 5 years of experience in Java didn’t understand how volatile variable works, what they know is that when you use a volatile variable it always checks the value from main memory while comparing, which is the truth but not complete. Since I have taken a lot of interviews, I know that programmers always have misconceptions about threads and how they work. The biggest contribution of the Java Concurrency in Practice to the Java world is not making concurrency easy but providing the correct and clear information which was lacking. Much like the classical concept of recursion which is too easy for some programmers but too difficult for others to grasp and apply in the real-world scenario. I have seen many programmers who simply weren’t able to visualize how multiple threads are interacting with the same piece of code with different data. No doubt that multi-threading and concurrency are difficult, they are both hard to get right in code and hard to understand and explain. It also goes on to explain why most concurrent applications are incorrectly written in Java and the common mistakes made by Java programmers which result in multi-threading issues like race conditions, deadlock, livelock, memory interference, and simply incorrect calculation.Įmoticons are used to show the bad practice before introducing the good and right way to do helped a lot not only to correct the misconception many Java developers had before but to sow the seed of right information pertaining to multi-threading and concurrency among Java developers. The course is no doubt expensive but its worth it This is the general view of the book, which many Java developer will give you when you asked them about how did you find “Java Concurrency in Practice”, but mine view is slightly different from them and that’s the main reason I still recommend Java Concurrency in Practice to any new Java developer or intermediate developers who want to master concurrency concepts.ītw, I found a lot of developer struggle to comprehend the concepts, if you are also one of them, I suggest you also join Java concurrency course by Heinz Kabutz Java champion which explains this book in a very nice way. The book offered them the seamless introduction of those tools and how they can use them to write high-performance concurrent Java applications. Many Java programmers were even not aware of new tools introduced in the API like CountDownLatch, CyclicBarrier, ConcurrentHashMap, and much more. When this book came first in 2006, the Java world was still not sure of new concurrency changes made in Java 1.5, I think the first big attempt to improve Java’s built-in support for multi-threading and concurrency.

I really liked the question and thought that many Java programmers might have the same doubt whenever someone recommends them to read Java Concurrency in Practice.

One of my readers Shobhit asked this question on my blog post about 12 must-reads advanced Java books for intermediate programmers - part1. Hello guys, if you are wondering whether one of the famous Java books, Java Concurrency in Practice is valid in the era of Modern Java of functional programming or not then you are not alone, many Java developers have similar doubts.