Additional Notes
How does indexed access in ArrayList differ from insertion?
Track: Java
Topic: Collections
Focus: List Interface and ArrayList
Java: List Interface and ArrayList
Answer
Indexed access is fast; insertion can be slow.
ArrayLists provide fast indexed access (O(1)) since elements are stored in a contiguous array. However, insertion, especially in the middle or beginning, can be slow (O(n)) because it may require shifting elements.
ArrayLists provide fast indexed access (O(1)) since elements are stored in a contiguous array. However, insertion, especially in the middle or beginning, can be slow (O(n)) because it may require shifting elements.
Topics: Collections Java List Interface and ArrayList