17-集合框架-13-常用对象API(集合框架-LinkedList集合)

package cn.itcast.linkedlist.demo;import java.util.Iterator;import java.util.LinkedList;public class LinkedListDemo {public static void main(String[] args) {LinkedList link = new LinkedList();link.addFirst("abc1");link.addFirst("abc2");link.addFirst("abc3");link.addFirst("abc4");Iterator it = link.iterator();while(it.hasNext()){System.out.println(it.next());/* * abc4 * abc3 * abc2 * abc1 */}System.out.println(link.getFirst());System.out.println(link.getFirst());System.out.println(link.removeFirst());System.out.println(link.removeFirst());}}