A comparison of LinkedList over ArrayList

Question

Aryan Kumar · Answer

Sure, here is a comparison of linked lists and ArrayLists:
Feature
Linked List
ArrayList
Data structure
Linear
Dynamic array
Memory allocation
Dynamic
Static
Insertion
O(1) at the beginning, O(n) at the end
O(n)
Deletion
O(1) at the beginning, O(n) at the end
O(n)
Searching
O(n)
O(n)
Accessing
O(n)
O(1)
Size
Can grow or shrink
Fixed size
Traversal
Forward only
Forward and backward
Ease of implementation
Difficult
Easy
Efficiency
Less efficient for accessing elements
More efficient for accessing elements
Applications
Used in queues, stacks, and doubly linked lists
Used in array-based data structures
As you can see, linked lists are more efficient for insertion and deletion operations, while ArrayLists are more efficient for accessing elements. Linked lists are also more flexible in terms of size, as they can grow or shrink as needed. However, they are more difficult to implement than ArrayLists. ArrayLists are easier to implement, but they have a fixed size.
The best choice for a particular application depends on the specific needs of the application. If the application requires frequent insertion or deletion operations, then a linked list is a good choice. If the application requires frequent access to elements, then an ArrayList is a good choice.

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A comparison of LinkedList over ArrayList

Revati S Misra

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Feature	Linked List	ArrayList
Data structure	Linear	Dynamic array
Memory allocation	Dynamic	Static
Insertion	O(1) at the beginning, O(n) at the end	O(n)
Deletion	O(1) at the beginning, O(n) at the end	O(n)
Searching	O(n)	O(n)
Accessing	O(n)	O(1)
Size	Can grow or shrink	Fixed size
Traversal	Forward only	Forward and backward
Ease of implementation	Difficult	Easy
Efficiency	Less efficient for accessing elements	More efficient for accessing elements
Applications	Used in queues, stacks, and doubly linked lists	Used in array-based data structures