java中對List中對象排序實現

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);// 按點擊數倒序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;}}