Java class set. Linked list class LinkedList

public static void main(String[] args) {
		LinkedList<String> linkedList = new LinkedList<String>();
		linkedList.add("1");
		linkedList.add("2341");
		linkedList.add("Think");
		
		System.out.println(linkedList);
		
		linkedList.addFirst("first");//Add to the first element
		linkedList.addLast("last");//Add to the last element
		System.out.println(linkedList);
		
		String element = linkedList.element();//Find the header
		System.out.println(linkedList);
		
		linkedList.peek();//Find the header (do not delete)
		System.out.println(linkedList);
		
		linkedList.poll();//Find the header (delete)
		System.out.println(linkedList);
	}