paixu.java

这是一个简单的考试系统

package com.tool;

import java.util.Comparator;
import com.pogo.Grade;

public class paixu implements Comparator {
	public int compare(Object o1,Object o2) {
		  Grade p1=(Grade)o1;
		  Grade p2=(Grade)o2;  
		  if(p1.getGrade()<p2.getGrade())
		   return 1;
		  else
		   return 0;
		 }
}