TREEset的模板类

 package 关闭;

import java.awt.*;import java.util.*;import java.applet.*;public class Arraytest {public static void main(String[] args){TreeSet SET= new TreeSet(new bijiao());int i;Student[] xuesheng=new Student[6];for(i=4;i>=1;i--){xuesheng[i]=new Student(i*10);SET.add(xuesheng[i]);}System.out.println(SET.toString());    }}class Student{int score;public Student(int Score){this.score=Score;}}class bijiao implements Comparator{public int compare(Object arg0, Object arg1) {  Student p1=(Student)arg0;  Student p2=(Student)arg1;return p1.score-p2.score;}}

Treeset丢入集合的时候就需要进行比较比如新类的话就要重写他的compare 方法