java学生信息管理基于eclipse环境.doc

一个项目里，建6个类 每个类对应一个操作1 添加：package Student_M;import java.util.Scanner;public class AddMessage InputMessage IM=new InputMessage();public void addMessage()String addstr;Scanner sc=new Scanner(System.in);System.out.println(请输入要添加的学生信息!);addstr=sc.next();for(int i=0;iIM.sum_stu.length;i+)if(IM.sum_stui=null)IM.sum_stui=addstr;System.out.println(添加成功!);2 删除：package Student_M;import java.util.Scanner;public class DeleteMessage ShowMessage SM=new ShowMessage();InputMessage IM=new InputMessage();public static String delete_stu; public void deleteMessage()int i,j;Scanner sc=new Scanner(System.in);System.out.println(请输入要删除的学生的信息：);delete_stu=sc.next();for(i=0;iIM.sum_stu.length;i+)if(delete_stu.equals(IM.sum_stui)IM.sum_stui=null;System.out.println(成功删除!);3 初始化录入信息：package Student_M;import java.io.*;import java.util.Scanner;public class InputMessage public static String sum_stu; public static int n;void inputMessage()String stu;System.out.println(你要输入的学生人数：);Scanner sc=new Scanner(System.in); n=sc.nextInt();sum_stu=new Stringn;for(int i=1;i=n;i+)System.out.println(请输入学生姓名,学号，班级(信息用逗号隔开）：);stu=sc.next();sum_stui-1=stu;4 查询：package Student_M;import java.io.*;import java.util.Scanner;public class SearchMessage static int j;public void search_stu()InputMessage IM=new InputMessage();String searchname;Scanner sc=new Scanner(System.in);System.out.println(请输入要查询的学生信息：);searchname=sc.next();for(int i=0;iIM.sum_stu.length;i+)if(searchname.equals(IM.sum_stui)j=i;System.out.println(信息已找到!); System.out.println(IM.sum_stuj);5 主菜单：package Student_M;import java.util.Scanner;public class Show InputMessage IM=new InputMessage();ShowMessage SM=new ShowMessage();DeleteMessage DM=new DeleteMessage();AddMessage AM=new AddMessage();SearchMessage SE=new SearchMessage(); void show()int i;for(i=1;i=6;i+)System.out.println(1输入学生信息 2显示学生信息 3删除学生信息 4添加学生信息 5查询学生成绩 6退出);Scanner sc=new Scanner(System.in);int choice=sc.nextInt();if(choice=6)break;switch(choice)case 1:IM.inputMessage();break; case 2:SM.showMessage();break;case 3:DM.deleteMessage();break;case 4:AM.addMessage();break;case 5:SE.search_stu();break;default:break;6 显示：package Student_M;import java.io.*;public class ShowMessageInputMessage IM=new InputMessage();void showMessage()for(int i=0;iIM.sum_stu.length;i+)System.out.println(n+IM.sum_stui);7 主函数：package Studen