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;
}

}