【java编程】Collections工具类之复写reserve方法

import java.util.*;class CollectionsReverse {public static void main(String[] args) {List<String> list=new ArrayList<String>();list.add("abb");list.add("bbb");list.add("aab");list.add("aac");list.add("baa");sop(list);Reserve(list);sop(list);}public static void Reserve(List<String> list){int size=list.size();Iterator it=list.iterator();for(int i=0,mid=size>>1,j=size-i-1;i<mid;i++,j--){String temp=(String)it.next();list.set(i,list.get(j));list.set(j,temp);}}public static void sop(Object obj){System.out.println(obj);}}