java使用listIterator逆序arraylist示例分享

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;

public class IteratorDemo {
     public static void main(String[] args) {
            List<Integer> list = new ArrayList<Integer>();// 创建列表
            for (int i = 0; i < 10; i++) {// 向列表中增加10个元素
                list.add(i);
            }
            Iterator it = list.iterator();
            System.out.print("ArrayList集合中的元素为：");
            while(it.hasNext()){
                System.out.print(it.next()+" ");
            }     
            System.out.println();
            System.out.println("逆序后为：");
            ListIterator<Integer> li = list.listIterator();// 获得ListIterator对象
            for (li = list.listIterator(); li.hasNext();) {// 将游标定位到列表结尾
                li.next();
            }
            for (; li.hasPrevious();) {// 逆序输出列表中的元素
                System.out.print(li.previous() + " ");
            }
        }
}