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服务器之家 - 编程语言 - Java教程 - Java 实现简易教务管理系统的代码

Java 实现简易教务管理系统的代码

2020-07-29 00:44nochiller Java教程

这篇文章主要介绍了Java 实现简易教务管理系统的代码,本文通过实例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下

Main.java

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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

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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

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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

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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

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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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原文链接:https://blog.csdn.net/nochiller/article/details/107603178

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