Why LinkedList in java both extends AbstractSequentialList and implements List? [duplicate]

This question already has an answer here:

Why does arraylist class implement List as well as extend AbstractList?

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Why LinkedList in java both extends AbstractSequentialList and implements List in the same time when AbstractSequentialList already implements List interface?

The same for ArrayList (e. AbstractList, i. List).

Is there any technical reason or maybe just for clarity?...

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By: StackOverFlow - 6 days ago

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