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What happens if two threads simultaneously modify TreeSet?(a) ConcurrentModificationException is thrown(b) Both threads can perform action successfully(c) FailFastException is thrown(d) IteratorModificationException is thrown |
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Answer» Correct choice is (a) ConcurrentModificationException is thrown Best explanation: TreeSet provides fail-fast iterator. Hence when concurrently modifying TreeSet it throws ConcurrentModificationException. |
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