Arraylist vs LinkedList | Java Interview Question

Опубликовано: 24 Апрель 2026
на канале: Viplove QA - SDET

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ArrayList vs LinkedList

ArrayList: Uses a dynamic array, provides fast random access (O(1)), but slow insertions/deletions (O(n)) in the middle due to shifting.

LinkedList: Uses a doubly linked list, allows fast insertions/deletions (O(1)), but slow access (O(n)) as traversal is needed.

When to use?

Use ArrayList for frequent reads & random access.

Use LinkedList for frequent insertions/deletions in the middle.