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Which collection class allows you to grow or shrink its size and provides indexed access to its elements, but whose methods are not synchronized? A. java.util.HashSet B. java.util.LinkedHashSet C. java.util.List D. java.util.ArrayList

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D. java.util.ArrayList
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D. java.util.ArrayList
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obviously its ArrayList so ans is : D. java.util.ArrayList
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java.util.ArrayList. By default ArrayList methods are not syncronized..
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D. java.util.ArrayList
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