list 排序

今天递交的离职申请，没啥心思啊。。。

上次上花旗面试的时候被问道list排序，果断悲剧了。。。。

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首先把comparator接口实现

public class scorecomparator imlements comparator{
    public int compara(Object arg0,Object arg1){
       Student s1 = (Student)arg0;
       Student s2 = (Student)arg1;
       if(s1.score > s2.score){
         return -1;    
      }
       if(s1.score == s2.score){
         return 0;    
      }
      if(s1.score < s2.score){
         return 1;    
      }
    }
}


//然后调用
public void comparaTest(List list){
      scorecomparator sc = new scorecomparator();
      Conlections.sort(list,sc);
}


ps:没实践过，公司笔记本已经被我清理掉了，纯手动运行已经忘了。。。