Fiveable
Fiveable

ArrayLists

Definition

ArrayLists are dynamic arrays that can grow and shrink dynamically as needed. They provide resizable arrays with additional methods for easy manipulation and management.

Analogy

Think of an ArrayList as your backpack while going on a trip. You start with some essentials but keep adding more items as you go along. If you need more space, your backpack expands automatically to accommodate everything you want to carry.

Related terms

Array: An array is a fixed-size data structure that stores a collection of elements of the same type.

List: A list is a collection that maintains the order of its elements and allows duplicates. It can be implemented using various data structures, including ArrayLists.

Resize: Resizing refers to changing the size or capacity of a data structure dynamically, either by expanding or shrinking it as needed.



© 2024 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.


© 2024 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.