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?…
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Home › Java & Big Data Interview Q&As › ➡ Java interview › 300+ Core Java Interview Q&As › Archive for Core Java – Multithreading
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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…
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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…
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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…
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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…
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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….
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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…
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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…
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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…
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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 is the base implementation of the Future with methods to start and cancel a computation. The FutureTask provides asynchronous computation with methods to start and cancel a computation, query to see if the computation is complete, and retrieve the result of the computation.…
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Hope this detailed Q&As approach will help you open more doors without feeling stagnated, earn more, attend more interviews & choose from 2-6 job offers. Even you can go contracting or freelancing or change jobs every 2-3 years to expand your horizons. Nobody knows everything, but quality of answers to some of the key & frequently asked Java & Big Data interview questions will go a long way in getting multiple job offers. I often chose from 4-6 offers. It pays to prepare.
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