功能要求：

1) 输入十个同学的学号，姓名，四科成绩（应用数学、大学英语、Java程序设计、计算机应用基础）

2) 计算出平均成绩。以平均成绩降序输出成绩表。

3) 输出全组各科平均分，最高分和最低分。

4) 输入姓名查询成绩

界面要示：用图形界面实现。

-Functional requirements:



1) input ten students of student id, name, four families score (applied mathematics, college English, Java program design, computer application foundation)



2) calculate average scores. With grade point average descending output records.



3) output full group under the highest and lowest points, average point.



4) enter name query results



Interfaces to shimei: use graphical interface implementation.