java学生管理程序说明书

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云端小悟空 2024-09-29 12:44:55

文章标签 java学生管理程序说明书 java 开发语言学习 i++ 文章分类 Java 后端开发

1.代码Package1（包名）

Demo类（主函数）

package Package1;
public class Demo {
 public static void main(String[] args) throws Exception {
 new MainManager().mainMenu();
 }
 }

DataBase类（数据类）

package Package1;
public class DataBase {
 public static int sIndex = 0;
 public static Student[] slist = new Student[50];
 public static Teacher[] tlist = new Teacher[2];
 public static int start = 0;
 public static Friend[] flist = new Friend[20];static {
    tlist[0] = new Teacher("admin", "123456");
    tlist[1] = new Teacher("miui", "123");

    slist[sIndex++] = new Student("路飞", "1234", "01", "男", "10086");
    slist[sIndex++] = new Student("索隆", "1234", "02", "男", "20086");
    slist[sIndex++] = new Student("娜美", "1234", "03", "女", "30086");
    slist[sIndex++] = new Student("娜娜", "1234", "04", "女", "40086");
    slist[sIndex++] = new Student("阿索", "1234", "05", "男", "50086");
    slist[sIndex++] = new Student("罗宾", "1234", "06", "女", "60086");
}}

Person类

package Package1;
public class Person {
 public String name;
 public String pwd;public Person() {
}

public Person(String name, String pwd) {
    this.name = name;
    this.pwd = pwd;
}

public Person(String name) {
    this.name = name;
}}

Student类（学生类）

package Package1;
public class Student extends Person {
 public String ID;
 public String sex;
 public String tel;public Student() {
}

public Student(String name, String pwd, String ID, String sex, String tel) {
    super(name, pwd);
    this.ID = ID;
    this.sex = sex;
    this.tel = tel;
}

public Student(String name, String ID, String sex) {
    super(name);
    this.ID = ID;
    this.sex = sex;
}}

Teacher类（教师类）

package Package1;
public class Teacher extends Person {
 public Teacher() {
 }public Teacher(String name, String pwd) {
    super(name, pwd);
}}

Friend类（学生朋友类）

package Package1;
public class Friend extends Student {
 public String myid;
 public String fid;
 public String bname;public Friend() {  }
public Friend(String myid, String fid, String bname) {
    this.myid = myid;
    this.fid = fid;
    this.bname = bname;
}}

MainManager类（主菜单）

使用了Tools工具类的菜单生成器

package Package1;
import static Package1.Tools.*;
public class MainManager {
 public void mainMenu() throws Exception {
 int data = -1;
 while (true) {
 int menu = factoryMenu(“主菜单”, “1、老师登录”, “2、学生登录”);
 switch (menu) {
 case 1:
 new StudentManager().stuJudge();
 break;
 case 2:
 new FriendManager().teaJudge();
 break;
 default:
 data = 1;
 break;
 }
 if (data == 1) break; //输入除选项1，2外的其他数字键键退出程序
 if (!getPan(“是否继续进行主菜单y/n”)) break;
 }
 pl(“程序运行结束，欢迎下次使用!”);
 }
 }

StudentManager类（教师管理类）

package Package1;
import java.io.FileWriter;
import static Package1.DataBase.;
 import static Package1.Tools.;
public class StudentManager {
 public void stuJudge() throws Exception {
 int data = -1;
 for (int i = 0; i < 3; i++) {
 String name = getString(“请输入用户名：”);
 String pwd = getString(“请输入密码：”);
 for (int j = 0; j < 2; j++) {
 if (tlist[j].name.equals(name) && tlist[j].pwd.equals(pwd)) {
 pl(“登录成功！”);
 mainMenu();
 data = 1;
 }
 }
 if (data == 1 ) break; //用来跳出返回主菜单时的输入用户密码的for循环
 pl(“用户名或者密码错误请重新输入”);
 }
 }public void mainMenu() throws Exception {
    int data = -1;
    while (true) {
        int menu = factoryMenu("学生管理界面", "1、添加学生信息", "2、修改学生信息", "3、删除学生信息",
                "4、查询学生信息", "5、保存学生信息");
        switch (menu) {
            case 1:
                Tadd();
                break;
            case 2:
                Trevise();
                break;
            case 3:
                Tdelete();
                break;
            case 4:
                Tselect();
                break;
            case 5:
                saveStuInfo();
                break;
            default:
                data = 1;
                break;
        }
        if (data == 1) break;      //输入除选项1，2，3，4外的其他数字键键退出学生管理界面
        if (!getPan("是否要继续进行学生管理界面y/n")) break;
    }
}

public static void Tadd() {
    while (true) {
        Student stu = new Student();
        stu.name = getString("姓名");
        stu.pwd = getString("密码");
        stu.ID = getString("ID");
        stu.sex = getString("性别");
        stu.tel = getString("电话");
        slist[sIndex++] = stu;
        if (!getPan("是否要继续输入学生信息y/n")) break;
    }
}

public static void Tselect() {
    int data = -1;
    while (true) {
        int menu = factoryMenu("学生信息查询界面", "1、所有学生信息", "2、学号查询信息", "3、姓名查询信息"
                , "4、性别查询信息");
        switch (menu) {
            case 1:
                selectAll();
                break;
            case 2:
                selectById();
                break;
            case 3:
                selectByName();
                break;
            case 4:
                selectBySex();
                break;
            default:
                data = 1;
                break;
        }
        if (data == 1) break;      //输入除选项1，2，3，4外的其他数字键键退出查询界面
        if (!getPan("是否继续查询界面y/n")) break;
    }
}

public static void Tdelete() {
    selectAll();
    String sc = getString("请输入要删除者的姓名");
    for (int i = 0; i < sIndex; i++) {
        if (slist[i].name.equals(sc)) {
            for (int j = i; j < sIndex - 1; j++) slist[j] = slist[j + 1];
            sIndex = sIndex - 1;
            pl("删除成功！");
            selectAll();
            break;
        }
    }
}

public static void Trevise() {
    selectAll();
    String sc = getString("请输入要修改者的姓名");
    for (int i = 0; i < sIndex; i++) {
        if (slist[i].name.equals(sc)) {
            Student stu = new Student();
            stu.name = getString("请输入修改后的姓名：");
            stu.pwd = getString("请输入修改后的密码：");
            stu.ID = getString("请输入修改后的ID：");
            stu.sex = getString("请输入修改后的性别：");
            stu.tel = getString("请输入修改后的电话号码");
            slist[i] = stu;
            pl("修改信息成功！");
            selectAll();
            break;
        }
    }
}

public static void selectAll() {
    pl("\t姓名\t电话\t性别\tID");
    for (int i = 0; i < sIndex; i++) {
        pl(1 + i + "\t" + slist[i].name + "\t" + slist[i].tel + "\t" + slist[i].sex + "\t" + slist[i].ID);
    }
}

public static void selectById() {
    String sc = getString("请输入大概的学号");
    pl("学号\t姓名\t密码\t电话\t性别");
    for (int i = 0; i < sIndex; i++) {
        if (slist[i].ID.indexOf(sc) >= 0)
            pl(slist[i].ID + "\t" + slist[i].name + "\t" + slist[i].pwd + "\t" + slist[i].tel + "\t" + slist[i].sex);
    }
}

public static void selectByName() {
    String sc = getString("请输入大概的姓名");
    pl("学号\t姓名\t密码\t电话\t性别");
    for (int i = 0; i < sIndex; i++) {
        if (slist[i].name.indexOf(sc) >= 0)
            pl(slist[i].ID + "\t" + slist[i].name + "\t" + slist[i].pwd + "\t" + slist[i].tel + "\t" + slist[i].sex);
    }
}

public static void selectBySex() {
    String sc = getString("请输入性别");
    pl("学号\t姓名\t密码\t电话\t性别");
    for (int i = 0; i < sIndex; i++) {
        if (slist[i].sex.indexOf(sc) >= 0)
            pl(slist[i].ID + "\t" + slist[i].name + "\t" + slist[i].pwd + "\t" + slist[i].tel + "\t" + slist[i].sex);
    }
}

public static void saveStuInfo() throws Exception {
    FileWriter fileWriter = new FileWriter("D:\\Javaone\\StudentInfo.txt");
    for (int i = 0; i < sIndex; i++) {
        fileWriter.write(slist[i].name + "\t" + slist[i].ID + "\t" + slist[i].sex + "\t" + slist[i].tel + "\t" + slist[i].pwd + "\n");
    }
    fileWriter.close();
}}

FriendManager类（学生管理类）

package Package1;
import static Package1.DataBase.;
 import static Package1.StudentManager.selectAll;
 import static Package1.Tools.;
public class FriendManager {
 public String myid;
 int data = -1;
 String name;public void teaJudge() {
    for (int i = 0; i < 3; i++) {
        name = getString("请输入用户名：");
        String pwd = getString("请输入密码：");
        for (int j = 0; j < sIndex; j++) {
            if (slist[j].name.equals(name) && slist[j].pwd.equals(pwd)) {
                pl("登录成功！");
                mainMenu();
                data = 1;
            }
        }
        if (data == 1) break;       //用来跳出返回主菜单时的输入用户密码的for循环
        pl("用户名或者密码错误请重新输入");
    }
}

public void mainMenu() {
    int data = -1;
    while (true) {
        int menu = factoryMenu("学生个人中心界面", "1、我的个人信息", "2、修改个人密码", "3、查询同学信息",
                "4、添加好友信息", "5、查询好友信息", "6、删除好友信息");
        switch (menu) {
            case 1:
                stuInformation();
                break;
            case 2:
                sturevise();
                break;
            case 3:
                selectAll();
                break;
            case 4:
                stuadd();
                break;
            case 5:
                friSelect();
                break;
            case 6:
                friDelete();
                break;
            default:
                data = 1;
                break;
        }
        if (data == 1) break;      //输入除选项1，2，3，4，5，6外的其他数字键键退出学生个人中心界面
        if (!getPan("是否要继续进行学生个人中心界面y/n")) break;
    }
}

public void stuInformation() {
    for (int i = 0; i < sIndex; i++) {
        if (slist[i].name.equals(name)) {
            pl("\t姓名\t电话\t性别\tID");
            pl(1 + i + "\t" + slist[i].name + "\t" + slist[i].tel + "\t" + slist[i].sex + "\t" + slist[i].ID);
            break;
        }
    }
}

public void sturevise() {
    String sc = getString("请输入原来的密码：");
    for (int i = 0; i < sIndex; i++) {
        if (slist[i].pwd.equals(sc)) {
            slist[i].pwd = getString("请输入修改后的密码：");
            pl("新密码为" + "\t" + slist[i].pwd);
            break;
        }
    }
}

public void stuadd() {
    pl("\t姓名\t电话\t性别\tID");
    int scount=0,fcount;
    boolean tag=true;
    while(scount<sIndex){
        for (fcount=0;fcount<start;fcount++){
            if(slist[scount].name.equals(flist[fcount].name))
                tag=false;
        }
        if (tag){
            pl(slist[scount].name + "\t" + slist[scount].tel + "\t" + slist[scount].sex + "\t" + slist[scount].ID);
        }
        scount++;
        tag=true;

    }
        String frid = getString("请输入要添加的好友ID：");
        int findex = getStudentIndexById(frid);
        if(findex >=0){
            String bname = getString("请输入好友备注");
            Friend info = new Friend();
            info.myid = myid;
            info.fid = frid;
            info.bname= bname;
            info.name=slist[findex].name;
            info.sex=slist[findex].sex;
            info.tel=slist[findex].tel;
            flist[start++]=info;
        }else {
            System.out.println("没有找到");
        }
}
public int getStudentIndexById(String id){
    int i;
    for(i = 0; i < sIndex ; i++){
        if(id.equals(slist[i].ID)){
            return i;
        }
    }
    return -1;
}

public void friSelect() {
    int data = -1;
    while (true) {
        int menu = factoryMenu("好友查询界面", "1、所有好友信息", "2、学号查询信息", "3、性别查询信息");
        switch (menu) {
            case 1:
                selectFriendAll();
                break;
            case 2:
                selectFriendId();
                break;
            case 3:
                selectFriendSex();
                break;
            default:
                data = 1;
                break;
        }
        if (data == 1) break;      //输入除选项1，2，3外的其他数字键键退出好友查询界面
        if (!getPan("是否继续进行好友查询界面y/n")) break;
    }
}

public void friDelete() {
    selectFriendAll();
    String sc = getString("请输入要删除好友的ID：");
    for (int i = 0; i < start; i++) {
        if (flist[i].fid.equals(sc)) {
            for (int j = i; j < start - 1; j++) {
                flist[j] = flist[j + 1];
                start = start - 1;
                pl("删除成功");
                selectFriendAll();
                break;
            }
        }
    }
}

public void selectFriendAll() {
    pl("好友id\t好友备注\t好友姓名\t好友电话\t好友性别");
    for(int i = 0;i < start; i++) {
        if (flist[i].myid==myid) {
            pl(flist[i].fid+"\t"+flist[i].bname+"\t"+flist[i].name+"\t"+flist[i].tel+"\t"+flist[i].sex);
        }
    }
}

public static void selectFriendId() {
    String sc = getString("请输入大概的ID：");
    pl("ID\t姓名\t备注\t性别");
    for (int i = 0; i < start; i++) {
        if (flist[i].fid.indexOf(sc) >= 0)
            pl(flist[i].fid + "\t" + flist[i].name + "\t" + flist[i].bname + "\t" + flist[i].sex);
    }
}

public static void selectFriendSex() {
    String sc = getString("请输入性别：");
    pl("ID\t姓名\t备注\t性别");
    for (int i = 0; i < start; i++) {
        if (flist[i].sex.indexOf(sc) >= 0)
            pl(flist[i].fid + "\t" + flist[i].name + "\t" + flist[i].bname +"\t" + flist[i].sex);
    }
}}

Tools类（工具类）

package Package1;
import java.util.Scanner;
public class Tools {
 static Scanner input = new Scanner(System.in);public static void pl(Object msg) {
    System.out.println(msg);
}

public static String getString(String msg) {
    System.out.println(msg);
    return input.next();
}

public static int getInt(String msg) {
    System.out.println(msg);
    return input.nextInt();
}

public static Boolean getPan(String msg) {
    String isC = getString(msg);
    return isC.equalsIgnoreCase("y");
}

public static int factoryMenu(String ... strs){
    pl("------------------------------------------------");
    pl("                  |   " + strs[0] + "   |                ");
    pl("");
    int i=0;
    StringBuffer sb=new StringBuffer("请选者功能菜单<");
    for (i = 1; i < strs.length; i++) {
        pl("   % % % % % % % % " + strs[i] + " % % % % % % % %");
        sb.append(i+",");
    }
        sb.delete(sb.length()-1,sb.length());
        sb.append(">:");
        pl("------------------------------------------------");
        System.out.print(sb);
        return new Scanner(System.in).nextInt();
    }}