Java 实现简易教务管理系统的代码
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2022-09-22 20:02:09
main.javaimport java.util.scanner; public class main { public static void main(string[] args) {syste...
main.java
import java.util.scanner;
public class main {
public static void main(string[] args) {
system.out.println("\t\t简易教务管理系统");
system.out.println("1、录入学生\t2、显示学生\t3、录入课程\t4、显示课程\t5、录入教师"
+"\t6、显示教师\t7、学生选课\t8、教师录入成绩\t9、教师排课\t10、授课评价\t0、退出");
student[] students=null;
course courses[]=null;
teacher teachers[]=null;
operator operator=new operator();
scanner scan= new scanner(system.in);
itcase: while (true) {
//显示系统主菜单
system.out.print("请选择功能菜单:");
int choice = scan.nextint();// 接收用户的选择
switch(choice){
case 1: // 输入学生信息
system.out.println("请输入学生数：");
int n = scan.nextint();
students = new student[n];
operator.addstudents(students);
break;
case 2: // 显示全部学生信息
operator.displaystudents(students);
break;
case 3://录入课程
system.out.println("请输入课程数：");
n = scan.nextint();
courses = new course[n];
operator.addcourses(courses);
break;
case 4: // 显示课程
operator.displaycourses(courses);
break;
case 5: // 录入教师
system.out.println("请输入教师数：");
n = scan.nextint();
teachers = new teacher[n];
operator.addteachers(teachers);
break;
case 6:// 显示教师
operator.displayteachers(teachers);
break;
case 7:// 学生选课
operator.stuselectcourses(students, courses);
break;
case 8:// 录入成绩
operator.inputscores(students);
break;
case 9:// 教师排课
operator.assignteachcourses(teachers, courses);
break;
case 10:// 授课评价
operator.inputevaluate(teachers);
break;
case 0:// 退出
break itcase;
default:
system.out.println("非法命令！");
}
}
}
course.java
public class course {
private string courseid;//课程号
private string coursename;//课程名称
private double credit;//学分
//构造方法
course(){
}
course(string courseid,string coursename,double credit){
this.setcourseid(courseid);
this.setcoursename(coursename);
this.setcredit(credit);
}
public string getcourseid() {
return courseid;
}
public void setcourseid(string courseid) {
this.courseid = courseid;
}
public string getcoursename() {
return coursename;
}
public void setcoursename(string coursename) {
this.coursename = coursename;
}
public double getcredit() {
return credit;
}
public void setcredit(double credit) {
this.credit = credit;
}
}
operator.java
import java.util.scanner;
public class operator {
scanner scan;
operator(){
scan= new scanner(system.in);
}
//录入课程
public void addcourses(course[] courses){
system.out.println("请输入学生信息：格式为课程号,课程名,学分");
string str;
string sinfor[];
for(int i=0;i<courses.length;i++){
str=scan.next();
sinfor=str.split(",");
courses[i]=new course(sinfor[0],sinfor[1],double.parsedouble(sinfor[2]));
}
}
//显示所有课程
public void displaycourses(course[] courses){
for(int i=0;i<courses.length;i++){
system.out.println("课程号："+courses[i].getcourseid()+",课程名："+courses[i].getcoursename()
+",学分："+courses[i].getcredit());
}
}
//录入学生
public void addstudents(student[] students){
system.out.println("请输入学生信息：格式为学号,姓名,性别,电话,地址,年龄");
string str;
string sinfor[];
for(int i=0;i<students.length;i++){
str=scan.next();
sinfor=str.split(",");
students[i]=new student(sinfor[0],sinfor[1],sinfor[2],sinfor[3],
sinfor[4],integer.parseint(sinfor[5]));
}
}
//显示学生所有信息
public void displaystudents(student[] students){
for(int i=0;i<students.length;i++){
system.out.println("学号："+students[i].getstuid()+",姓名："+students[i].getstuname()
+",性别："+students[i].getsex()+",电话："+students[i].gettel()
+",住址："+students[i].getaddress()+",年龄："+students[i].getage());
if(students[i].selcourse!=null){
for(int j=0;j<students[i].selcourse.length;j++){
system.out.println("\t\t课程编号："+students[i].selcourse[j].courseid+",成绩："
+students[i].selcourse[j].grade);
}
}
}
}
//录入教师
public void addteachers(teacher[] teachers){
system.out.println("请输入教师信息：格式为工号,姓名,性别,电话,职称,年龄");
string str;
string sinfor[];
for(int i=0;i<teachers.length;i++){
str=scan.next();
sinfor=str.split(",");
teachers[i]=new teacher(sinfor[0],sinfor[1],sinfor[2],sinfor[3],sinfor[4],integer.parseint(sinfor[5]));
}
}
//显示教师所有信息
public void displayteachers(teacher[] teachers){
for(int i=0;i<teachers.length;i++){
system.out.println("工号："+teachers[i].getteaid()+",姓名："+teachers[i].getteaname()
+",性别："+teachers[i].getsex()+",电话："+teachers[i].gettel()
+",职称："+teachers[i].getprofessor()+",年龄："+teachers[i].getage());
if(teachers[i].teachcourse!=null){
for(int j=0;j<teachers[i].teachcourse.length;j++){
system.out.println("\t\t课程编号："+teachers[i].teachcourse[j].courseid+",授课评价："+teachers[i].teachcourse[j].evaluate);
}
}
}
}
//学生选课
public void stuselectcourses(student[] students,course[] courses){
system.out.println();
system.out.println("\t课程信息系如下：");
for(int i=0;i<courses.length;i++){
system.out.println("课程号："+courses[i].getcourseid()+"\t"+"课程名称："
+courses[i].getcoursename());
}
system.out.println();
system.out.println("请选择选修课程，格式为：课程号1,课程号2,......");
for(int i=0;i<students.length;i++){
system.out.println("学号："+students[i].getstuid()+"，姓名："
+students[i].getstuname()+" 选课：");
string str=scan.next();
string[] cids=str.split(",");
students[i].setselcourse(cids);
}
}
//教师排课
public void assignteachcourses(teacher[] teachers,course[] courses){
system.out.println();
system.out.println("\t课程信息系如下：");
for(int i=0;i<courses.length;i++){
system.out.println("课程号："+courses[i].getcourseid()
+"\t"+"课程名称："+courses[i].getcoursename());
}
system.out.println();
system.out.println("请选择课程，格式为：课程号1,课程号2,......");
for(int i=0;i<teachers.length;i++){
system.out.println("工号："+teachers[i].getteaid()
+"，姓名："+teachers[i].getteaname()+" 排课：");
string[] cids=scan.next().split(",");
teachers[i].setteachcourse(cids);
}
}
//教师录入成绩
public void inputscores(student[] students){
for(int i=0;i<students.length;i++){
for(int j=0;j<students[i].selcourse.length;j++){
system.out.println("请输入学号："+students[i].getstuid()
+",姓名："+students[i].getstuname()
+", 课程编号为："+students[i].selcourse[j].courseid+"的成绩：");
students[i].selcourse[j].grade=scan.nextdouble();
}
}
}
//教师授课评价
public void inputevaluate(teacher[] teachers){
for(int i=0;i<teachers.length;i++){
for(int j=0;j<teachers[i].teachcourse.length;j++){
system.out.println("请输入工号："+teachers[i].getteaid()+",姓名："+teachers[i].getteaname()
+", 课程编号为："+teachers[i].teachcourse[j].courseid+"的授课评价：");
teachers[i].teachcourse[j].evaluate=scan.next();
}
}
}
//删除某门课程
public void delcourses(course[] courses){
system.out.println("请输入要删除课程的编号：");
string courseid=scan.next();
for(int i=0;i<courses.length;i++){
if(courses[i].getcourseid().equals(courseid)){
courses[i]=null;
}
}
}
}
student.java
public class student {
//设置student类的属性
private string stuid; //学号
private string stuname; //姓名
private string sex; //性别
private string tel; //电话号码
private string address; //地址
private int age; //年龄
selectcourse[] selcourse; //选修课程
//构造方法
student(){
}
student(string stuid,string stuname){
this.stuid=stuid;
this.stuname=stuname;
}
student(string stuid,string stuname,string sex,string tel,string address,int age){
this(stuid,stuname); //this的用法
this.sex=sex;
this.tel=tel;
this.address=address; //地址
this.age=age;
}
public string getstuid() {
return stuid;
}
public void setstuid(string stuid) {
this.stuid = stuid;
}
//姓名属性封装
public string getstuname() {
return stuname;
}
public void setstuname(string stuname) {
this.stuname = stuname;
}
//性别属性封装
public string getsex() {
return sex;
}
public void setsex(string sex) {
this.sex = sex;
}
//电话属性封装
public string gettel() {
return tel;
}
public void settel(string tel) {
this.tel = tel;
}
//地址属性封装
public string getaddress() {
return address;
}
public void setaddress(string address) {
this.address = address;
}
//年龄属性封装
public int getage() {
return age;
}
public void setage(int age) {
this.age = age;
}
//设置选修课程
public void setselcourse(string[] cids) { //cids课程号数组 001,002
selcourse=new selectcourse[cids.length];
for(int j=0;j<cids.length;j++){
selcourse[j]= new selectcourse(cids[j]);
}
}
//录入选修课程成绩
public void setselcoursegrade(double[] grades) { //grades成绩数组
for(int j=0;j<grades.length;j++){
selcourse[j].grade= grades[j];
}
}
//计算学生各门课程的平均成绩
double getavg(){
double sum=0;
for(int i=0;i<selcourse.length;i++){
sum=sum+selcourse[i].grade;
}
return sum/selcourse.length;
}
//计算学生各门课程的总和
double getsum(){
double sum=0;
for(int i=0;i<selcourse.length;i++){
sum=sum+selcourse[i].grade;
}
return sum;
}
//内部类，用来记录选修的课程及成绩
class selectcourse{
string courseid;
double grade;
selectcourse(){
}
selectcourse(string courseid){
this.courseid=courseid;
}
selectcourse(string courseid,double grade){
this.courseid=courseid;
this.grade=grade;
}
}
}
teacher.java
public class teacher {
//设置teacher类的属性
private string teaid; //工号
private string teaname; //姓名
private string sex; //性别
private string tel; //电话
private string professor; //职称
private int age; //年龄
teachcourse teachcourse[]; //所授课程
//构造方法
teacher(){
}
teacher(string teaid,string teaname){
this.teaid=teaid;
this.teaname=teaname;
}
teacher(string teaid,string teaname,string sex,string tel,string professor,int age){
this(teaid,teaname); //this的用法
this.sex=sex;
this.tel=tel;
this.professor=professor; //地址
this.age=age;
}
//工号属性封装
public string getteaid() {
return teaid;
}
public void setteaid(string teaid) {
this.teaid = teaid;
}
//姓名属性封装
public string getteaname() {
return teaname;
}
public void setteaname(string teaname) {
this.teaname = teaname;
}
//性别属性封装
public string getsex() {
return sex;
}
public void setsex(string sex) {
this.sex = sex;
}
//电话属性封装
public string gettel() {
return tel;
}
public void settel(string tel) {
this.tel = tel;
}
//职称属性封装
public string getprofessor() {
return professor;
}
public void setprofessor(string professor) {
this.professor = professor;
}
//年龄属性封装
public int getage() {
return age;
}
public void setage(int age) {
this.age = age;
}
//所授课程设置
public void setteachcourse(string[] cids) {
teachcourse=new teachcourse[cids.length];
for(int j=0;j<cids.length;j++){
teachcourse[j]= new teachcourse(cids[j]);
}
}
//设置所授课程评价
public void setteachevaluate(string[] evaluates) { //grades成绩数组
for(int j=0;j<evaluates.length;j++){
teachcourse[j].evaluate= evaluates[j];
}
}
//内部类，教师所授课程
class teachcourse{
string courseid; //课程编号
string evaluate; //课程评价
teachcourse(string courseid){
this.courseid=courseid;
}
teachcourse(string courseid,string evaluate){
this.courseid=courseid;
this.evaluate=courseid;
}
}
}
ps/测试数据
01,张三,男,13500043567,浙江杭州,21
02,李四,男,13099872371,浙江温州,21
03,王五,男,13790972431,浙江金华,21
04,赵六,女,13190345445,浙江台州,21
05,孙七,女,13943298712,浙江湖州,21
001,java编程,6
002,网页设计,3.5
003,appinventor,2
01,李老师,男,13500043567,讲师,39
02,杨老师,女,13099872371,讲师,38
03,高老师,女,13790972431,副教授,39
04,赵老师,男,13190345445,副教授,56
05,孙老师,女,13943298712,教授,47
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