Java 实现简易教务管理系统的代码
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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