Flask接口签名sign原理与实例代码浅析
283
2022-08-25
Java实现简单的学生教师管理系统
本文实例为大家分享了java实现学生教师管理系统的具体代码,供大家参考,具体内容如下
需求:
我们可以通过管理系统对学生和教师进行管理对象学生和教师进行增删改查等的功能
1、Student和Teacher的父类2、Student类3、Teacher类4、Utils工具类5、测试类
Student和Teacher的父类
public class Person {
private String id; // 编号
private String name; // 姓名
private String IDcard; // 身份证
private String sex; // 性别
private String birthday; // 生日
private int age; //年龄
private String site; //地址
private String phone; // 电话
public Person() {
}
public Person(String id, String name, String IDcard, String sex, String birthday, String site, String phone) throws ParseException {
this.id = id;
this.name = name;
this.IDcard = IDcard;
this.sex = sex;
this.birthday = birthday;
this.age = Utils.birthdayToAge(birthday);
this.site = site;
this.phone = phone;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getIDcard() {
return IDcard;
}
public void setIDcard(String IDcard) {
this.IDcard = IDcard;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getBirthday() {
return birthday;
}
public void setBirthday(String birthday) throws ParseException {
this.birthday = birthday;
this.age = Utils.birthdayToAge(birthday);
}
public int getAge() {
return age;
}
public String getSite() {
return site;
}
public void setSite(String site) {
this.site = site;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
Student类
import java.text.ParseException;
public class Student extends Person {
private int grade; // 成绩
private String group; // 班级
// 学生号,姓名,身份证,性别,生日,地址,手机号,成绩,班级
public Student(String id, String name, String IDcard, String sex, String birthday, String site, String phone, int grade, String group) throws ParseException {
super(id, name, IDcard, sex, birthday, site, phone);
this.grade = grade;
this.group = group;
}
public Student() {
}
public int getGrade() {
return grade;
}
public void setGrade(int grade) {
this.grade = grade;
}
public String getGroup() {
return group;
}
public void setGroup(String group) {
this.group = group;
}
}
Teacher类
import java.text.ParseException;
public class Teacher extends Person{
private String career; // 专业
private String salary; // 工资
// 教师号,姓名,身份证,性别,生日,地址,手机号,专业,工资
public Teacher(String id, String name, String IDcard, String sex, String birthday, String site, String phone, String career, String salary) throws ParseException {
super(id, name, IDcard, sex, birthday, site, phone);
this.career = career;
this.salary = salary;
}
public Teacher() {
}
public String getCareer() {
return career;
}
public void setCareer(String career) {
this.career = career;
}
public String getSalary() {
return salary;
}
public void setSalary(String salary) {
this.salary = salary;
}
}
根据生日计算年龄的一个静态工具类
Utils
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Utils {
public static int birthdayToAge(String birthday) throws ParseException {
SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");
Date date = sdf.parse(birthday);
Date date1 = new Date();
long time = date.getTime();
long time1 = date1.getTime();
long age = (time1 - time) / 1000 / 60 / 60/ 24 / 365;
return (int)age;
}
}
测试类
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Scanner;
public class StudentAndTeacherSystem {
public static Scanner sc = new Scanner(System.in);
public static ArrayList
public static ArrayList
public static void main(String[] args) throws ParseException {
System.out.println("********************欢迎来到学生教师管理系统********************");
while (true) {
System.out.println("【1】 学生管理系统 【2】 教师管理系统 【3】 退出");
String num = sc.next();
switch (num) {
case "1":
// 学生管理系统
studentSystem();
break;
case "2":
// 教师管理系统
teacherSystem();
break;
case "3":
System.out.println("感谢您的使用!");
System.exit(0);
default:
System.out.println("您输入的编号" + num + "有误!");
break;
}
}
}
// 学生
public static void studentSystem() throws ParseException {
System.out.println("**********************【欢迎来到学生管理系统】**********************");
while (true){
System.out.println("*******【1】添加学生***************************【2】 修改学生*********");
System.out.println("*******【3】删除学生***************************【4】 查看所有学生******");
System.out.println("*******【5】查找指定学生************************【6】 统计所有学生信息**");
System.out.println("***************************【7】 返回上一级***************************");
System.out.println("~~~~~~~~~~~~~~~~~~~~~~~~【请输入您要选择的编号】~~~~~~~~~~~~~~~~~~~~~~~~");
String num = sc.next();
switch (num){
case "1":
// 添加
addStudent();
break;
case "2":
// 修改
updateStudent();
break;
case "3":
// 删除
deleteStudent();
break;
case "4":
// 查看
selectStudent();
break;
case "5":
// 指定查看
assignStudent();
break;
case "6":
// 统计
statisticsstudent();
break;
case "7":
System.out.println("返回上一级");
return;
default:
System.out.println("您输入的编号" + num + "有误!");
break;
}
}
}
public static void addStudent() throws ParseException {
// System.out.println("添加成功!");
System.out.println("请输入您的学生号:");
while (true) {
String id = sc.next();
int index = getIndex(students, id);
if (index == -1) {
System.out.println("请输入您的姓名:");
String name = sc.next();
System.out.println("请输入您的身份证:");
String IDcard = sc.next();
System.out.println("请输入您的性别:");
String sex = sc.next();
System.out.println("请输入您的生日(格式:2000-10-10)");
String birthday = sc.next();
System.out.println("请输入您的家庭地址:");
String site = sc.next();
System.out.println("请输入您的手机号:");
String phone = sc.next();
System.out.println("请输入您的成绩:");
int grade = sc.nextInt();
System.out.println("请输入您的班级:");
String group = sc.next();
Student stu = new Student(id, name, IDcard, sex, birthday, site, phone, grade, group);
students.add(stu);
System.out.println("添加成功!");
return;
} else {
System.out.println("您输入的学生号已存在,请重新输入!");
}
}
}
// 修改
public static void updateStudent() throws ParseException {
// System.out.println("修改成功!");
System.out.println("请输入您要修改的学生号:");
String id = sc.next();
int index = getIndex(students,id);
if(index == -1){
System.out.println("您输入的学生号不存在!!");
return;
}
System.out.println("请输入您的姓名:");
String name = sc.next();
System.out.println("请输入您的身份证:");
String IDcard = sc.next();
System.out.println("请输入您的性别:");
String sex = sc.next();
System.out.println("请输入您的生日:");
String birthday = sc.next();
System.out.println("请输入您的地址:");
String site = sc.next();
System.out.println("请输入您的手机号:");
String phone = sc.next();
System.out.println("请输入您的成绩:");
int grade = sc.nextInt();
System.out.println("请输入您的班级:");
String group = sc.next();
Student stu = new Student(id,name, IDcard,sex,birthday,site,phone,grade,group);
students.set(index,stu);
System.out.println("修改成功!");
}
// 删除
public static void deleteStudent() {
// System.out.println("删除成功!");
System.out.println("请输入您要删除的学生号:");
String id = sc.next();
int index = getIndex(students,id);
if(index == -1){
System.out.println("您输入的学生号不存在!");
return;
}else{
students.remove(index);
System.out.println("删除成功!");
return;
}
}
// 查看
public static void selectStudent() {
// System.out.println("查看成功!");
int num = students.size();
if(num == 0){
System.out.println("暂无信息,请添加以后在来查看!");
return;
}
// 编号,姓名,身份证,性别,生日,地址,手机号,成绩,班级
System.out.println("学生号\t姓名\t身份证\t性别\t生日\t年龄\t地址\t手机号\t成绩\t班级");
for (int i = 0; i < students.size(); i++) {
Student stu = students.get(i);
System.out.println(stu.getId() + "\t" + stu.getName() + "\t" + stu.getIDcard() + "\t" + stu.getSex() + "\t" + stu.getBirthday() + "\t" + stu.getAge() + "\t" + stu.getSite() + "\t" + stu.getPhone() + "\t" + stu.getGrade() + "\t" + stu.getGroup());
}
}
// 指定查看
public static void assignStudent() {
// System.out.println("指定查看成功!");
System.out.println("请输入您要查找的学生号:");
String id = sc.next();
int index = getIndex(students,id);
if(index == -1){
System.out.println("您输入的学生号不存在!");
}else{// // 编号,姓名,身份证,性别,生日,地址,手机号,成绩,班级
for (int i = 0; i < students.size(); i++) {
Student stu = students.get(i);
System.out.println("学生号:" + stu.getId());
System.out.println("姓 名:" + stu.getName());
System.out.println("生 日:" + stu.getBirthday());
System.out.println("年 龄:" + stu.getAge());
System.out.println("身份证:" + stu.getIDcard());
System.out.println("性 别:" + stu.getSex());
System.out.println("地 址:" + stu.getSite());
System.out.println("手机号:" + stu.getPhone());
System.out.println("成 绩:" + stu.getGrade());
System.out.println("班 级:" + stu.getGroup());
}
}
}
// 统计
public static void statisticsStudent() {
// System.out.println("统计成功!");
int countSex = 0;
int countGrade = 0;
for (int i = 0; i < students.size(); i++) {
Student stu = students.get(i);
if(stu.getSex().equals("男")){
countSex++;
}
if(stu.getGrade() > 60){
countGrade++;
}
}
System.out.println("学校一共有:" + students.size() + "个人");
System.out.println("男生有:" + countSex + "人");
System.out.println("女生有:" + (students.size() - countSex) + "人");
System.out.println("及格有:" + countGrade + "人");
System.out.println("不及格有:" + (students.size() - countGrade) + "人");
}
// 判断学生是否存在
public static int getIndex(ArrayList
int index = -1;
for (int i = 0; i < students.size(); i++) {
Student stu = students.get(i);
String sid = stu.getId();
if(sid.equals(id)){
index = i;
}
}
return index;
}
//===================================================================================
// 教师
public static void teacherSystem() throws ParseException {
System.out.println("********************【欢迎来到教师管理系统】**************************");
while (true){
System.out.println("*******【1】添加教师***************************【2】 修改教师*********");
System.out.println("*******【3】删除教师***************************【4】 查看所有教师******");
System.out.println("*******【5】查找指定教师************************【6】 统计所有教师信息**");
SyscZrzFVtem.out.println("***************************【7】 返回上一级***************************");
System.out.println("~~~~~~~~~~~~~~~~~~~~~~~~【请输入您要选择的编号】~~~~~~~~~~~~~~~~~~~~~~~~");
String num = sc.next();
// 编号,姓名,身份证,性别,生日,地址,手机号,成绩,班级
switch (num){
case "1":
// 添加
addTeacher();
break;
case "2":
// 修改
updateTeacher();
break;
case "3":
// 删除
deleteTeacher();
break;
case "4":
// 查看
selectTeacher();
break;
case "5":
// 指定查看
assignTeacher();
break;
case "6":
// 统计
statisticsTeacher();
break;
case "7":
System.out.println("返回上一级");
return;
default:
System.out.println("您输入的编号" + num + "有误!");
break;
}
}
}
// 添加
public static void addTeacher() throws ParseException {
//System.out.println("添加成功!");
System.out.println("请输入您的教http://师号:");
while (true) {
String id = sc.next();
int index = getindex(teachers, id);
if (index == -1) {
System.out.println("请输入您的姓名:");
String name = sc.next();
System.out.println("请输入您的身份证:");
String IDcard = sc.next();
System.out.println("请输入您的性别:");
String sex = sc.next();
System.out.println("请输入您的生日(格式:2000-10-10)");
String birthday = sc.next();
System.out.println("请输入您的家庭地址:");
String site = sc.next();
System.out.println("请输入您的手机号:");
String phone = sc.next();
System.out.println("请输入您的专业:");
String career = sc.next();
System.out.println("请输入您的工资:");
String salary = sc.next();
Teacher teacher = new Teacher(id, name, IDcard, sex, birthday, site, phone, career, salary);
teachers.add(teacher);
System.out.println("添加成功!");
return;
} else {
System.out.println("您输入的教师号已存在,请重新输入!");
}
}
}
// 修改
public static void updateTeacher() throws ParseException {
//System.out.println("修改成功!");
System.out.println("请输入您要修改的教师号:");
String id = sc.next();
int index = getindex(teachers,id);
if(index == -1){
System.out.println("您输入的教师号不存在!!");
return;
}
System.out.println("请输入您的姓名:");
String name = sc.next();
System.out.println("请输入您的身份证:");
String IDcard = sc.next();
System.out.println("请输入您的性别:");
String sex = sc.next();
System.out.println("请输入您的生日:");
String birthday = sc.next();
System.out.println("请输入您的地址:");
String site = sc.next();
System.out.println("请输入您的手机号:");
String phone = sc.next();
System.out.println("请输入您的专业:");
String career = sc.next();
System.out.println("请输入您的工资:");
String salary = sc.next();
Teacher teacher = new Teacher(id,name, IDcard,sex,birthday,site,phone,career,salary);
teachers.set(index,teacher);
System.out.println("修改成功!");
}
// 删除
public static void deleteTeacher() {
//System.out.println("删除成功!");
System.out.println("请输入您要删除的教师号:");
String id = sc.next();
int index = getindex(teachers,id);
if(index == -1){
System.out.println("您输入的教师号不存在!");
return;
}else{
teachers.remove(index);
System.out.println("删除成功!");
return;
}
}
// 查看
public static void selectTeacher() {
//System.out.println("查看成功!");
int num = teachers.size();
if(num == 0){
System.out.println("暂无信息,请添加以后在来查看!");
return;
}
// 编号,姓名,身份证,性别,生日,地址,手机号,成绩,班级
System.out.println("教师号\t姓名\t身份证\t性别\t生日\t年龄\t地址\t手机号\t专业\t工资");
for (int i = 0; i < teachers.size(); i++) {
Teacher teacher = teachers.get(i);
System.out.println(teacher.getId() + "\t" + teacher.getName() + "\t" + teacher.getIDcard() + "\t" + teacher.getSex() + "\t" + teacher.getBirthday() + "\t" + teacher.getAge() + "\t" + teacher.getSite() + "\t" + teacher.getPhone() + "\t" + teacher.getCareer() + "\t" + teacher.getcZrzFVSalary());
}
}
// 指定查看
public static void assignTeacher() {
//System.out.println("指定查看成功!");
System.out.println("请输入您要查找的教师号:");
String id = sc.next();
int index = getindex(teachers,id);
if(index == -1){
System.out.println("您输入的教师号不存在!");
}else{// // 编号,姓名,身份证,性别,生日,地址,手机号,成绩,班级
for (int i = 0; i < teachers.size(); i++) {
Teacher teacher = teachers.get(i);
System.out.println("教师号:" + teacher.getId());
System.out.println("姓 名:" + teacher.getName());
System.out.println("生 日:" + teacher.getBirthday());
System.out.println("年 龄:" + teacher.getAge());
System.out.println("身份证:" + teacher.getIDcard());
System.out.println("性 别:" + teacher.getSex());
System.out.println("地 址:" + teacher.getSite());
System.out.println("手机号:" + teacher.getPhone());
System.out.println("专 业:" + teacher.getCareer());
System.out.println("工 资:" + teacher.getCareer());
}
}
}
// 统计
public static void statisticsTeacher() {
// System.out.println("统计成功!");
int countSex = 0;
for (int i = 0; i < teachers.size(); i++) {
Teacher teacher = teachers.get(i);
if(teacher.getSex().equals("男")){
countSex++;
}
}
System.out.println("学校一共有:" + teachers.size() + "个教师");
System.out.println("男教师有:" + countSex + "人");
System.out.println("女教师有:" + (teachers.size() - countSex) + "人");
}
// 判断教师是否存在
public static int getindex(ArrayList
int index = -1;
for (int i = 0; i < teachers.size(); i++) {
Teacher teacher = teachers.get(i);
String sid = teacher.getId();
if(sid.equals(id)){
index = i;
}
}
return index;
}
}
版权声明:本文内容由网络用户投稿,版权归原作者所有,本站不拥有其著作权,亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容,请联系我们jiasou666@gmail.com 处理,核实后本网站将在24小时内删除侵权内容。
发表评论
暂时没有评论,来抢沙发吧~