学生信息管理系统Java代码

本学生信息管理系统代码主要实现以下5个主功能：1.添加一个学生);2.根据学号/姓名查找一个学生);3.根据学号更新一个学生信息);4.根据学号删除学生信息);5.根据学号输入学生成绩); 99.退出);副功能主动显示计算平均分和总成绩（还需添加其他功能代码，请联系）public class Student private String name;private String xuehao;private int age;private int index;private int math;private int chinese;private int english;private int wuli;private int huaxue;private int shengwu;private int sum;private int avg;public void setIndex(int index)this.index=index;public int getIndex()return this.index;public void setName(String name)/设置名字=name;public String getName()return ;public void setAge(int age)this.age=age;public int getAge()return this.age;public void setXuehao(String xuehao)/设置学号this.xuehao=xuehao;public String getXuehao()return this.xuehao;public void setMath(int math)this.math=math;public int getMath()return this.math;public void setChinese(int chinese)this.chinese=chinese;public int getChinese()return this.chinese;public void setEnglish(int english)this.english=english;public int getEnglish()return this.english;public void setWuli(int wuli)this.wuli=wuli;public int getWuli()return this.wuli;public void setHuaxue(int huaxue)this.huaxue=huaxue;public int getHuaxue()return this.huaxue;public void setShengwu(int shengwu)this.shengwu=shengwu;public int getShengwu()return this.shengwu;public void setSum()this.sum=this.math+this.chinese+this.english+this.wuli+this.huaxue+this.shengwu;public int getSum()return this.sum;public void setAvg()this.avg=sum/6;public int getAvg()return this.avg;public String toString()String msg=t+this.xuehao+tt++t+this.age+t+this.math+t+this.chinese+t+this.english+t+this.wuli+t+this.huaxue+t+this.shengwu+t+this.sum+t+this.avg;return msg;import java.util.Scanner;public class Admin Scanner in=new Scanner(System.in);String msg=t学号tt姓名t年龄t数学t语文t英语t物理t化学t生物t总成绩t平均分;public void print(Student arr)System.out.println(msg);for(int i=0;iarr.length;i+)if(arri!=null)arri.setSum();arri.setAvg();System.out.println(arri);public void creat(String name,String xuehao,int age,Student arr)Student stu=new Student();stu.setName(name);stu.setAge(age);int i=this.indexNum(arr);stu.setXuehao(xuehao);stu.setIndex(i);if(i=9999)System.out.println(学生人数已经达到限额);elsearri=stu;/数组中一个单元的学生信息对应一个对象this.print(arr);public int indexNum(Student arr)/返回空值for(int i=0;iarr.length;i+)if(arri=null)return i;return 9999;int c=0;public int findName(String name,Student arr)for(int i=0;iarr.length;i+)if(name.equals(arri.getName()c=i;return i;return 99;public int findXuehao(String xuehao,Student arr)for(int i=0;iarr.length;i+)if(xuehao.equals(arri.getXuehao()c=i;return i;return 00;public void selectBianhao(int index,Student arr)System.out.println(msg);for(int i=0;iarr.length;i+)if(arri!=null)if(index=arri.getIndex()System.out.println(arri);return;elseSystem.out.println(没有这个学生);public void selectName(String name,Student arr)/查询方法System.out.println(msg);tryfindName(name,arr);System.out.println(arrc);catch(Exception e)System.out.println(没有这个学生存在);public void selectXuehao(String xuehao,Student arr)/查询方法System.out.println(msg);tryfindXuehao(xuehao,arr);System.out.println(arrc);catch(Exception e)System.out.println(没有这个学生存在);public boolean exist(String xuehao,Student stu)/判断学生是否存在if(stu!=null)if(stu.getXuehao()=xuehao)return true;elsereturn false;return false;public void update(String xuehao,String name,int age,Student arr)/更新信息方法tryfindXuehao(xuehao,arr);arrc.setName(name);arrc.setAge(age);System.out.println(*更新学生信息成功*);System.out.println(msg);System.out.println(arrc);System.out.println(n);print(arr);return;catch(Exception e)System.out.println(*更新信息失败*);public void delete(String xuehao,Student arr)tryfindXuehao(xuehao,arr);arrc=null;System.out.println(删除后结果显示);print(arr);return;catch(Exception e)System.out.println(删除学生信息失败);public void input(String xuehao,Student arr)tryfindXuehao(xuehao,arr);System.out.println(请输入+arrc.getName()+的数学成绩);arrc.setMath(in.nextInt();System.out.println(请输入+arrc.getName()+的语文成绩);arrc.setChinese(in.nextInt();System.out.println(请输入+arrc.getName()+的英语成绩);arrc.setEnglish(in.nextInt();System.out.println(请输入+arrc.getName()+的物理成绩);arrc.setWuli(in.nextInt();System.out.println(请输入+arrc.getName()+的化学成绩);arrc.setHuaxue(in.nextInt();System.out.println(请输入+arrc.getName()+的生物成绩);arrc.setShengwu(in.nextInt();this.print(arr);catch(Exception e)System.out.println(输入有误);import java.util.*;public class StudentAdmin public static void main(String args)Scanner in=new Scanner(System.in);System.out.println(请定义学生人数);Admin adminStu=new Admin();int pStudent=in.nextInt();Student stuArr=new StudentpStudent;while(true)System.out.println(-学生管理系统-);System.out.println(请选择要执行的功能);System.out.println(1.添加一个学生);System.out.println(2.查找一个学生);System.out.println(3.更新一个学生信息);System.out.println(4.根据学号删除学生信息);System.out.println(5.根据学号输入学生成绩);System.out.println(99.退出);String action=in.next();if(action.equals(1)System.out.println(请输入学生姓名);String name=in.next();System.out.println(请输入学生+name+的学号);String xuehao=in.next();System.out.println(请输入学生+name+的年龄);int age=in.nextInt();adminStu.creat(name,xuehao,age,stuArr);/stuAdmin.print(stuArr);else if(action.equals(2)System.out.println(执行查找学生功能);System.out.println(a,根据学生姓名查询学生信息);System.out.println(b,根据学生的上下顺序查询学生信息);System.out.println(c,根据学生学号查询学生信息);String action_2=in.next();if(action_2.equals(a)System.out.println(请输入要查找的学生的姓名);String name=in.next();adminStu.selectName(name,stuArr);else if(action_2.equals(b)System.out.println(请输入要查找的学生的编号);int index=in.nextInt();adminStu.selectBianhao(index,stuArr);else if(action_2.equals(c)System.out.println(请输入学生的学号);String xuehao=in.next();adminStu.selectXuehao(xuehao,stuArr);elseSys