Concurrency Interview Questions | Concurrency Interview Questions and answers

Concurrency Interview Questions list for experienced

What are the main components of concurrency API?
What is the difference between Java Callable interface and Runnable interface?
What is the Atomic action in Concurrency in Java?
What is lock interface in Concurrency API in Java?
What is the difference between Synchronous programming and Asynchronous programming regarding a thread?
What do you understand by Callable and Future in Java?
What is the difference between ScheduledExecutorService and ExecutorService interface?
Define FutureTask class in Java?

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What is Concurrency ?

Answer : n computer science, concurrency is a property of systems in which multiple computations can be performed in overlapping time periods. The computations may be executing on multiple cores in the same chip, preemptively time-shared threads on the same processor, or executed on physically separated processors

Questions : 1 :: What are the main components of concurrency API?

Concurrency API can be developed using the class and interfaces of java.util.Concurrent package. There are the following classes and interfaces in java.util.Concurrent...View answers

Questions : 2 :: What is the difference between Java Callable interface and Runnable interface?

The Callable interface and Runnable interface both are used by the classes which wanted to execute with multiple threads. However, there are two main differences between the both : A Callable...View answers

Questions : 3 :: What is the Atomic action in Concurrency in Java?

The Atomic action is the operation which can be performed in a single unit of a task without any interference of the other operations. The Atomic action cannot be stopped in between the task. Once...View answers

Questions : 4 :: What is lock interface in Concurrency API in Java?

The java.util.concurrent.locks.Lock interface is used as the synchronization mechanism. It works similar to the synchronized block. There are a few differences between the lock and synchronized block...View answers

Questions : 5 :: What is the difference between Synchronous programming and Asynchronous programming regarding a thread?

Synchronous programming: In Synchronous programming model, a thread is assigned to complete a task and hence thread started working on it, and it is only available for other tasks once it will...View answers

Questions : 6 :: What do you understand by Callable and Future in Java?

Java Callable interface: In Java5 callable interface was provided by the package java.util.concurrent. It is similar to the Runnable interface but it can return a result, and it can throw an...View answers

Questions : 7 :: What is the difference between ScheduledExecutorService and ExecutorService interface?

ExecutorServcie and ScheduledExecutorService both are the interfaces of java.util.Concurrent package but scheduledExecutorService provides some additional methods to execute the Runnable and Callable...View answers

Questions : 8 :: Define FutureTask class in Java?

Java FutureTask class provides a base implementation of the Future interface. The result can only be obtained if the execution of one task is completed, and if the computation is not achieved then...View answers

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Concurrency Interview Questions And Answers