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What is the difference between ArrayList and LinkedList?

2022-06-23 03:33:00 【, country】

The most obvious difference is ArrrayList The underlying data structure is an array , Support random access , and LinkedList The underlying data structure of is double
Circular linked list , Random access is not supported . Using subscripts to access an element ,ArrayList The time complexity of is O(1), and LinkedList
yes O(n).
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