package study; import study.datastructure.LinkedList; public class Main { public static void main(String[] args) { LinkedList myLinkedList = new LinkedList(1); myLinkedList.append(2); myLinkedList.printList(); System.out.println(myLinkedList.removeFirst()); System.out.println(myLinkedList.removeFirst()); System.out.println(myLinkedList.removeFirst()); } }