![]() ![]() This article is meant to teach you basics e.g. Javin you are right, writing thread-safe, concurrent and performance code requires lot of experience and programming skill. In my opinion, this article help prepare for around intermediate positions, as there are aspects which can't be understand by simple demo code's. Would you say this article could help prepare one for an interview for a junior Java developer position? Or is it intermediate/advanced level? But we can change the state, and I am not talking about String in particular. We can change the state of Immutable object, can't we? We can not instantiate again the object. The language specification guarantees that reading or writing a variable is atomic unless the variable is of type long or double. * This method is thread-safe because count is incremented atomically :(Ītomic Operation? What exactly does it mean? I was not able to understand entire code. "JVM plays a spoiler since it can reorder code for optimization, so the code which looks sequential and runs fine in development environment not guaranteed to run similarly in production environment because JVM may ergonomically adjust itself as server JVM and perform more optimization and reorder which cause thread-safety issues." In my view, it only helps to give a hint to the compiler/JVM not to reorder the statements/instructions for achieving optimization. 10 Advanced Core Java Courses for Experienced programmers ( course)Ītomicity is just one way which can cause thread-safety or concurrency issue, how about visibility, ordering etc ? visibility related concurrency and thread-safety issues are more hard to debug.Įven with volatile keyword, the threading issues are not resolved as the read-update-write issue exists between two threads even though the value of the volatile variable is read from main memory.6 Books to learn Multithreading and Concurrency in Java ( books).What is happens-before in Java Concurrency? ( answer).Top 5 Books to learn Java Concurrency in-depth ( books).Difference between multi-threading and multi-tasking in Java? ( answer).Top 12 Java Concurrency Questions for Experienced Programmers ( see here).10 Courses to Crack Java Interviews for Beginners ( courses). ![]() Top 5 courses to Learn Java Performance Tuning ( courses).Top 10 Courses to learn Java in-depth ( courses).What is the right way to stop a Thread in Java? ( tutorial).How to join more than two Threads in Java? ( example).Is "Java Concurrency in Practice" Still Valid in the era of Java 8? ( opinion).How to use Future and FutureTask in Java? ( tutorial). ![]() Top 5 Courses to learn Multithreading and Concurrency in Java ( courses).Top 50 Java Multithreading Interview Questions from last 5 years ( list).Other multi-threading articles you may like It's an advanced course to become an expert in Multithreading, concurrency, and Parallel programming in Java with a strong emphasis on high performance. ītw, if you are serious about mastering Java multi-threading and concurrency then I also suggest you take a look at the Java Multithreading, Concurrency, and Performance Optimization course by Michael Pogrebinsy on Udemy. This will not be a very detailed article on thread-safety or low-level details of synchronization in Java instead we will keep it simple and focus on one example of non-thread-safe code and try to understand what is thread-safety and how to make a code thread-safe. ![]() thread-safety is one of the risks introduced by using threads in Java and I have seen java programmers and developers struggling to write thread-safe code or just understanding what is thread-safe code and what is not? any code, class, or object which can behave differently from its contract on the concurrent environment is not thread-safe. Thread-safety or thread-safe code in Java refers to code which can safely be used or shared in concurrent or multi-threading environment and they will behave as expected. ![]()
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