LinkedList: A doubly-linked list implementation of the List interface. Efficient for insertions and deletions.
Example:

import java.util.LinkedList;
LinkedList list = new LinkedList<>();
list.add(10);
list.add(20);
list.addFirst(5);
list.addLast(30);
System.out.println(list);
list.remove(2);
System.out.println(list);