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Java / Collections

List out the similarities between ArrayList and LinkedList in Java.

Both ArrayList and LinkedList implements List interface and their API are identical.

Both allows null as an element and even multiple null is possible as well since List allows duplicates.

Both ArrayList and LinkedList are not synchronized and we could render as synchronized using Collections.synchronizedList method.

Both returns a shallow copy of the original object when clone() method is invoked and the elements itself are not cloned.

Both ArrayList and LinkedList preserve the order of the elements in the way it is added to the ArrayList or LinkedList.

The Iterator and the ListIterator of ArrayList and LinkedList are fail-fast so in case of any modification to the list while iterating throws ConcurrentModificationException.

Enumeration of both ArrayList and LinkedList is fail-fast, any modification on the ArrayList or LinkedList throws concurrent exception.

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List and its implementations

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