The difference between ArrayList and LinkedList in Java

ArrayList and LinkedList are both implementations of the List interface in Java. Both classes are asynchronous. But there are certain differences.

The following are the important differences between ArrayList and LinkedList methods.

gentlemen. No.	Key	ArrayList	LinkedList
1	Internal implementation	ArrayList internally uses a dynamic array to store its elements .	LinkedList uses bidirectional linking to store a list of its elements.
2	Operation	ArrayList is slow because of the array Operation is slower.	Node-based LinkedList is faster because it doesn’t require as much bit shifting.
3	Implements	ArrayList only implements List.	LinkedList implements List and Queue. It can also act as a queue.
4	Access	ArrayList stores and accesses data faster.	LinkedList processes data faster.

ArrayList example with LinkedList

JavaTester.java

import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
public class JavaTester {
   public static void main(String args[]) {
      List<String> list = new ArrayList<>();
      list.add("A");
      list.add("B");
      list.add("C");
      list.add("D");
      List<String> list1 = new LinkedList<>();
      list1.add("A");
      list1.add("B");
      list1.add("C");
      list1.add("D");
      System.out.println(list);
      System.out.println(list1);
   }
}

Output

[A, B, C, D]
[A, B, C, D]

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