ArrayList and LinkedList both implement the List interface and maintain insertion order. Both are non-synchronized classes.
There are many differences between the ArrayList and LinkedList classes that are stated below.
|ArrayList internally uses a dynamic array to store the elements.||LinkedList internally uses a doubly linked list to store the elements.|
|Manipulation with ArrayList is slow because it internally uses an array. If any element is removed from the array, all the other elements are shifted in memory.||Manipulation with LinkedList is faster than ArrayList because it uses a doubly linked list, so no bit shifting is required in memory.|
|An ArrayList class can act as a list only because it implements List only.||LinkedList class can act as a list and queue both because it implements List and Deque interfaces.|
|ArrayList is better for storing and accessing data.||LinkedList is better for manipulating data.|
|The memory location for the elements of an ArrayList is contiguous.||The location for the elements of a linked list is not contagious.|
|Generally, when an ArrayList is initialized, a default capacity of 10 is assigned to the ArrayList.||There is no case of default capacity in a LinkedList. In LinkedList, an empty list is created when a LinkedList is initialized.|
|To be precise, an ArrayList is a resizable array.||LinkedList implements the doubly linked list of the list interface.|