ArrayList<E>

Definition

ArrayList<E> is a class in Java that represents a dynamic array. The <E> in ArrayList<E> signifies the use of generics, allowing you to specify the type of elements that will be stored in the ArrayList.

Related terms

Generics:

Generics allow you to create classes, interfaces, and methods that can work with any data type. It provides compile-time safety by ensuring that only the specified type is used.

Array:

An array is a fixed-size data structure that stores elements of the same type contiguously in memory.

List:

A list is an ordered collection of elements where each element has an index associated with it. Unlike arrays, lists can dynamically grow or shrink as needed.