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|Core Java - Interview Questions and Answers for 'Disadvantages of collections over array' - 1 question(s) found - Order By Rating|
|Ans. Collections can only hold objects, It can't hold primitive data types.|
Collections have performance overheads as they deal with objects and offer dynamic memory expansion. This dynamic expansion could be a bigger overhead if the collection class needs consecutive memory location like Vectors.
Collections doesn't allow modification while traversal as it may lead to concurrentModificationException.
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