Collections · interview question
How does an ArrayList handle element removal in terms of performance?
Multiple choiceHardchapter-4-curatedpremiumcollectionslist-interface-and-arraylist
Answer and explanation
Correct answer
D. It takes linear time O(n) in the worst case.
Why
Removing an element from an ArrayList typically involves shifting elements, leading to O(n) time complexity in the worst case, especially if the element is near the beginning.
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