java实现List中对象排序的方法

package com.test; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; public class NewsManager {  /**   * @param args   */  public static void main(String[] args) {   List newss=getNewsList();   for(int i=0;i<newss.size();i++)   {    News news=(News)newss.get(i);    System.out.println("id:"+news.getId());    System.out.println("title:"+news.getTitle());    System.out.println("hits:"+news.getHits());   }  }  public static List getNewsList()  {   List list=new ArrayList();   News news1=new News();   news1.setHits(1);   news1.setId(1);   news1.setTitle("test1");   list.add(news1);   News news2=new News();   news2.setHits(7);   news2.setId(2);   news2.setTitle("test2");   list.add(news2);   News news3=new News();   news3.setHits(3);   news3.setId(3);   news3.setTitle("test3");   list.add(news3);   News news4=new News();   news4.setHits(5);   news4.setId(4);   news4.setTitle("test4");   list.add(news4);   // 按点击数倒序   Collections.sort(list, new Comparator<News>() {    public int compare(News arg0, News arg1) {     int hits0 = arg0.getHits();     int hits1 = arg1.getHits();     if (hits1 > hits0) {      return 1;     } else if (hits1 == hits0) {      return 0;     } else {      return -1;     }    }   });   return list;  } }