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Difference between ArrayList and LinkedList?

 
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Hi

Please tell me the difference between ArrayList and LinkedList in terms of the removal of an element from both of the collections
 
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LinkedList is implemented as a double linked list. ArrayList is implemented based on an array.

Now imagine you have a loooong list, and want to remove the first element in the list. What does each version have to do internally to maintain the lists integrity (hint: the indices of each element have to be correct after removing the first element!). That should give you an idea when to use each variant.
 
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