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|Interview Questions and Answers|
|Ans. Its a type of ArrayList in which all Write operations , i.e add and set are performed by creating a new copy. This array never changes during the lifetime of the iterator, so it never throws ConcurrentModificationException|
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|What are the advantages and disadvantages of CopyOnWriteArrayList ?|
|What is the trade off between using Collections.synchronizedList() on an ArrayList and a CopyOnWriteArrayList?|