Array | Collections |
Performance is good.
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Performance is not good compared to array.
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Fixed in size.
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Size is dynamic (growable).
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Stores only homogeneous elements
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Store both homogeneous and heterogeneous elements.
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There is no inbuilt Data structure.
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Inbuilt Standard Data structure example sorting,searching.
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Stores both Primitive and Objects
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Stores only Objects not primitive
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Memory management not good .because size is fixed there may be waste of memory .
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Memory management is good
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