学生信息管理系统1）导入所需要的类包代码：importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;importjava.io.*;importjava.util.*;（2）Menuactions类的编写：classStudentimplementsjava.io.Serializable{Stringnumber,name,specialty,grade,borth,sex;publicStudent(){};publicvoidsetNumber(Stringnumber){this.number=number;}publicStrin