Java Collections: LinkedList Example

•         Java uses a doubly-linked list

-          it can be traversed from the beginning or the end

•         LinkedList provides methods to get, remove and insert an element at the beginning and end of the list

-          these operations allow a linked list to be used as a stack or a queue

•         LinkedList is not synchronized

-          problems if multiple threads access a list concurrently

            LinkedList must be synchronized externally

Example

package com.vinod.collections;

import java.util.LinkedList;
import java.util.List;

public class LinkedListExample {

    public static void main(String[] args) {
        List<String> lList = new LinkedList<String>();
        // Adding objects
        lList.add("1");
        lList.add("2");
        lList.add("3");
        lList.add("4");
        lList.add("5");

        // Iterating values

        for (String names : lList) {
            System.out.println("LinkedList values : " + names);
        }
    }

}
 

 

Ouput

LinkedList values : 1

LinkedList values : 2

LinkedList values : 3

LinkedList values : 4

LinkedList values : 5