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|Java - Interview Questions and Answers|
|Ans. Lock interface provide more extensive locking. They allow more flexible structuring and may support multiple associated Condition objects.|
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|Like Discuss Correct / Improve  concurrency api|
|Explain multithreading in Java ?|
|What is a Deadlock ?|
|What is a ConcurrentHashMap ?|
|If you need to consume messages from the queue faster, which approach will you recommend - batching or concurrency ?|
|What is race condition ?|
|What is ConcurrentModificationException ?|
|What is the use of runnable interface if we can always create a new thread using Thread class ?|
|When you will synchronize a piece of your code?|
|What is the use of Synchronized block ?|
|Explain Java 8 concurrency mechanism.|