Java interview questions & answers on multithreading scenarios to judge your experience in building applications with concurrency in mind. Q1. Can you give some scenarios where you built concurrent systems? A1. …
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03: 7 Things you must know about Java locks and synchronized key word
7 Things you must know about Java locks and synchronized key word summarizes the key basics. #1. Each Java class and object (i.e. instance of a class) has an intrinsic lock …
04: 6 popular Java multithreading interview Q&As for the experienced
Q1. Why do threads need to communicate with each other? A1. Inter thread communication is very similar to inter process communication where 2 or more processes communicate with other, the only …
05: 9 Java multithreading Q&As on concepts like blocking, sequencing, preempting, time slicing & daemon threads
Java multithreading Q&As on concepts like blocking, and debugging blocked threads. How do you sequence threads? what do you understand by the term preemptive scheduling? Q1. What are the different ways …
06: 10+ Atomicity, Visibility, and Ordering interview Q&A in Java multi-threading
Q1. Why is it important to understand the difference between the “JVM memory model” and the computer “hardware memory model”? A1. 3 reasons why it is important to understand the JVM …
07: Java FP – CompletableFuture monadic chaining with examples – part 1
This extends Future Vs. CompletableFuture interview Q&As with Java 8 functional programming (i.e. FP). Q1. Why was CompletableFuture introduced in Java 8 when you already had the Future interface? A1. The …
07: Java ThreadLocal Interview questions & answers
Java ThreadLocal Interview questions & answers in detail with code focusing more on when to use it and how to not abuse it. Q1. What is a ThreadLocal class? When to …
08: 7 basic Java Executor framework Interview Q&As with Future & CompletableFuture
Basic level Java Executor framework Interview Q&As with Future & CompletableFuture (introduced in Java 8), which you would be using very often in Java apps. Q01. What is an Executor Framework? …
08: CompletableFuture monadic chaining with examples – part 2
This extends Java FP – CompletableFuture monadic chaining with examples – part 1. f and g are processed asynchronously, and then combined A “Supplier” returns a result by taking nothing as …
09: Java FutureTask example
Java 5 introduced the concurrent package for more efficient multi-threading.
Q. What is the difference between Future and FutureTask in asynchronous processing?
A. Future is the interface and FutureTask …
10: ExecutorService Vs Fork/Join & Future Vs CompletableFuture Interview Q&As
Q1. What is the difference between “ExecutorService” and “Fork/Join Framework“?
A1. The Fork/Join framework uses a special kind of thread pool known as the ForkJoinPool, which …
14: Java Thread stop, resume, suspend & interrupt interview Q&As
Q1. Why are Thread.stop, Thread.suspend and Thread.resume deprecated? A1. We already learnt that “In Java programming, each object has a lock. A thread can acquire the lock for an object by …
15+ Java beginner multithreading interview Q&As
Q1. What is a thread?
A1. It is a thread of execution in a program. The JVM (i.e. process) allows an application to have multiple threads of execution running concurrently. …
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