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Java Concurrency Interview Questions and Answers

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Ques 1. What is concurrency in Java?

Concurrency in Java is the ability of multiple threads to execute independently and simultaneously.

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Ques 2. Explain the difference between processes and threads.

A process has its own memory space, while threads within a process share the same memory space.

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Ques 3. What is the purpose of the synchronized keyword in Java?

The synchronized keyword is used to control access to critical sections of code by allowing only one thread at a time to execute it.

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Ques 4. Explain the concept of Thread Safety.

Thread Safety ensures that a piece of code can be safely executed by multiple threads without causing data corruption or unexpected behavior.

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Ques 5. What is the Executor framework in Java?

The Executor framework provides a higher-level replacement for managing threads and thread pools.

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