find.java

学生信息管理系统

package homework;
///班级：信计 01-2班     学号：01012218     姓名：武冬生

/**
 * Title:
 * Description:
 * Copyright:    Copyright (c) 2004
 * Company:
 * @author
 * @version 1.0
 */

public class find implements command
{
  public find()
  {
  }
  public void execute()
  {
    double max=0,min=100,average=0,sum=0;
    String maxname=new String();
    String minname=new String();
    for(int i=0;i<stulist.size();i++)
    {
     double score=0;
     score+=((stu)stulist.elementAt(i)).getScore();
     sum+=score;
     if(score<min)
      {
        min=score;
         minname=((stu)stulist.elementAt(i)).getName();
      }
     if(score>max)
      {
        max=score;
        maxname=((stu)stulist.elementAt(i)).getName();
        }
    }
    average=sum/(stulist.size());
    System.out.println("The average score:"+average);
    System.out.println("The min score:  "+minname+min);
    System.out.println("The max score:  "+maxname+max);
  }
  public void undo()
  {
  }
  public void redo()
  {
  }
}