java中对List中对象排序实现

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;  
    }  
  
}  

原博地址：https://blog.csdn.net/5iasp/article/details/8990531