对list集合排序

//排序简单list
		//Collections.sort(List<Integer>);
		//排序含对象list
		Collections.sort(railWayList, new Comparator<RailWay>() {
			@Override
			public int compare(RailWay o1, RailWay o2) {
				//排序属性为int类型
			       int i = o1.getUpCount() - o2.getUpCount();  
               			  if(i == 0){  
                   	               return o1.getUpCount() - o2.getUpCount();  
                		}  
                	return i;
                //排序属性为string类型
				return Collator.getInstance(Locale.CHINESE).compare(o1.getLineName(), o2.getLineName());
			}
		});
			return railWayList;