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| Core Java - Interview Questions and Answers for 'Concurrentmodificationexception' - 3 question(s) found - Order By Newest | |||||
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| Ans. This is the exception that is thrown when we try to modify the non concurrent collection class while iterating through it. | |||||
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 Discuss Correct / Improve  java collections concurrentmodificationexception exception concurrency  Asked in 14 Companies  intermediate | |||||
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 What is CopyOnWriteArrayList ? | |||||
| What are the advantages and disadvantages of CopyOnWriteArrayList ? | |||||
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| 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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| Discuss Correct / Improve java collections list arraylist copyonwritearraylist ConcurrentModificationException Asked in 1 Companies | |||||
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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? | |||||
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| Ans. This collections class has been implemented in such a manner that it can never throw ConcurrentModificationException. As it performs update and write operations by creating a new copy of ArrayList, It's slower compared to ArrayList. | |||||
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| Discuss Correct / Improve java collections list arraylist copyonwritearraylist advantages-disadvantages ConcurrentModificationException Asked in 4 Companies Expert | |||||
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