java poll linkedlist / linkedlist pollfirst polllast method

/**
 * @author lautturi.com 
 * Java example: poll pollfirst polllast methods in java linkedlist
 */


import java.util.*;

public class Lautturi {

	public static void main(String[] args) {
		
		LinkedList<String> list = new LinkedList<String>();		
		list.add("java");
		list.add("python");
		list.add("js");
		list.add("php");
		list.add("hello");
		list.add("lautturi");
		
		System.out.println(list);
		String eleFirst = list.pollFirst();
		String eleLast = list.pollLast();
		System.out.println(eleFirst);
		System.out.println(eleLast);
		
		String ele;
		
		System.out.println("poll the linked list:");
		while((ele = list.poll()) != null) {
			System.out.println(ele);
		}
		System.out.println(list);

	}
}

output:

[java, python, js, php, hello, lautturi]
java
lautturi
poll the linked list:
python
js
php
hello
[]