Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
An ArrayList is a resizable dynamic data structure in Java that stores elements sequentially. In this case, "<Integer>" specifies that this particular ArrayList can only store Integer objects.
Related terms
LinkedList<String>: Another dynamic data structure similar to ArrayList but with different internal implementation.
HashMap<String, Integer>: A data structure that maps keys to values, allowing fast retrieval based on the key.
Stack<Integer>: A data structure where elements are added and removed based on last-in-first-out (LIFO) order.