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ArrayList and LinkedList are two popular implementations of the List interface in Java. Here are some key difference between the arraylist and linkedlist are as follows
| Property | ArrayList | LinkedList |
|---|---|---|
| Data structure | Backed by an array | Backed by a doubly linked list |
| Insertion and deletion | Efficient for adding or removing elements at the end | Efficient for inserting or removing elements in the middle |
| Memory allocation | Allocates memory for a fixed-size array | Allocates memory for each element and next/previous pointers |
| Iteration | More efficient for iterating over all elements in the list | Requires traversing each element using the next pointer |
| Synchronization | Not synchronized by default | Not synchronized by default |
In general, ArrayList is better for scenarios where you need fast random access to elements in the list and are mainly adding or removing elements at the end of the list. LinkedList is better for scenarios where you need to frequently add or remove elements in the middle of the list, or if you need to iterate over the list in a specific order.
