Collections 类的sort 方法排序

Collections 类的sort 方法排序   
  
List list1 = ds.selectByVO(ivo1);   
  
Collections.sort(list1, new Comparator() {   
        public int compare(Object o1, Object o2) {   
                return (((TbRegIndustryProductReportVO) o1).getProductCode()).compareTo(((TbRegIndustryProductReportVO) o2).getProductCode());   
         }   
});