四、学生评教管理系统java版（对学生的增删改查，对课程的增删查，老师的添加，教师对课程的排课，查询教师与课程号的对应信息，学生登录并授课评价），并且对其进行了优化，在主方法中全部可以实现（附源代码）

package 学生评教管理系统;
import java.io.Serializable;
public class Student  implements Serializable {
    private int sid;  //学号
    private String name; //姓名
    private int age;   //年龄
    private String address; //住址
    public Student() {
        super();
    }
    public Student(int sid, String name, int age, String address) {
        super();
        this.sid = sid;
        this.name = name;
        this.age = age;
        this.address = address;
    }
    public int getSid() {
        return sid;
    }
    public void setSid(int sid) {
        this.sid = sid;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
}
二、Teac

package 学生评教管理系统;
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
    String 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 String[cIds.length];
        for (int j = 0; j < cIds.length; j++) {
            teachCourse[j] = cIds[j];
        }
    }
}

package 学生评教管理系统;
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;
    }
}

package 学生评教管理系统;
import java.util.ArrayList;
import java.util.Scanner;
public class Operator {
    Scanner scan;
    Operator() {
        scan = new Scanner(System.in);
    }
    //查询学生所有信息
    public static void showAllStudent(ArrayList<Student> list) {
        //思路： 遍历集合，获得每一个学生对象，再输出学生对象的信息
        System.out.println("学号\t\t\t姓名\t\t\t年龄\t\t住址");
        for (Student stu : list) {
            System.out.println(stu.getSid() + "\t\t" + stu.getName() + "\t\t" + stu.getAge() + "\t\t" + stu.getAddress());
        }
    }
    //添加学生
    public static void addStudents(ArrayList<Student> list) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入学号：");
        int sid = sc.nextInt();
        System.out.println("请输入姓名：");
        String name = sc.next();
        System.out.println("请输入年龄：");
        int age = sc.nextInt();
        System.out.println("请输入住址：");
        String address = sc.next();
        //2.  将学生的信息包装到Student Bean中
        Student stu = new Student(sid, name, age, address);
        //3.  将学生这个对象保存到集合中
        list.add(stu);
        System.out.println("添加成功！");
    }
    //修改学生
    public static void reviseStudent(ArrayList<Student> list) {
        // TODO Auto-generated method stub
        //1.  判断集合中有没有学生信息
        Scanner sc = new Scanner(System.in);
        if (list.size() == 0) {
            System.out.println("当前没有学生信息");
            return;  //return直接跳出当前语句，不会执行下面的语句
        }
        //2.  输入要修改的学生学号
        System.out.println("请输入您想修改的学生学号：");
        int id = sc.nextInt();
        //3.  判断输入的id是否在list集合中，如果在，则执行一系列的代码，如果不在，直接跳出
        boolean flag = false;
        for (int i = 0; i < list.size(); i++) {
            if (list.get(i).getSid() == id) {
                flag = true;
                //4.  提示用户输入新的学生信息(学号、姓名、年龄、住址)
                System.out.println("请输入新的学号：");
                int sidNew = sc.nextInt();
                System.out.println("请输入新的姓名：");
                String nameNew = sc.next();
                System.out.println("请输入新的年龄：");
                int ageNew = sc.nextInt();
                System.out.println("请输入新的住址：");
                String addressNew = sc.next();
                //5.  将接受到的学生的信息重新包装到Student Bean中
                Student stu = new Student(sidNew, nameNew, ageNew, addressNew);
                //6.  将集合进行修改
                list.set(i, stu);
                System.out.println("修改成功！");
                break;
            }
        }
        if (flag == false) {
            System.out.println("没有找到该学生，请重新输入:");
        }
    }
    //删除学生
    public static void delStudent(ArrayList<Student> list) {
        //1.  判断集合中有没有学生信息
        Scanner sc = new Scanner(System.in);
        if (list.size() == 0) {
            System.out.println("当前没有学生信息");
            return;  //return直接跳出当前语句，不会执行下面的语句
        }
        //2.  输入要删除的学生的学号
        System.out.println("请输入您想要删除的学生学号：");
        int id = sc.nextInt();
        //3.  判断输入的id是否在list集合中，如果在，则执行一系列的代码，如果不在，直接跳出
        boolean flag = false;
        for (int i = 0; i < list.size(); i++) {
            if (list.get(i).getSid() == id) {
                flag = true;
                list.remove(i);
                System.out.println("删除成功！");
                return;  //break结束当前语句，下面的代码会继续执行
            }
        }
        if (flag == false) {
            System.out.println("未找到您想要删除的学生信息，请重新输入");
        }
    }
    //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());
        }
    }
    //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;
                System.out.println("删除成功！");
            }
        }
    }
    //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);
            //    }
            //}
        }
    }
    //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(请输入课程号)：");
            String[] cIds = scan.next().split(",");
            teachers[i].setTeachCourse(cIds);
        }
    }
    //查询教师与课程号的对应信息
    public void showCourses(Teacher[] teachers, Course[] courses) {
        System.out.println("教师与课程号的对应关系如下：");
        for (int i = 0; i < teachers.length; i++) {
            if (teachers[i].teachCourse.length > 0) {
                for (int j = 0; j < teachers[i].teachCourse.length; j++) {
                    System.out.println("课程号：" + teachers[i].teachCourse[j]
                            + "\t" + "课程名称：" + courses[Integer.parseInt(teachers[i].teachCourse[j]) - 1].getCourseName() + "\t教师工号：" + teachers[i].getTeaId() + "\t教师姓名：" + teachers[i].getTeaName());
                }
            }
        }
    }
    //学生登录
    public static boolean inputEvaluate(int studentId, int passworld, ArrayList<Student> list) {
        Scanner scans = new Scanner(System.in);
        boolean flag = false;
        for (int i = 0; i < list.size(); i++) {
            if (list.get(i).getSid() == studentId && passworld == 123456) {
                System.out.println("登录成功！");
                flag = true;
                break;
            } else {
                flag = false;
            }
        }
        return flag;
    }
    //授课评价
    public void evaluate(Teacher[] teachers) {
        Scanner input = new Scanner(System.in);
        for (int i = 0; i < teachers.length; i++) {
            System.out.println("请输入对第" + (i + 1) + "位老师的评价：");
            String pingjia = input.next();
            System.out.println("学生对第" + (i + 1) + "位老师的评价：" + pingjia);
        }
    }
}

package 学生评教管理系统;
import java.util.ArrayList;
import java.util.Scanner;
import static 学生评教管理系统.Operator.inputEvaluate;
public class Main {
    public static void main(String[] args) {
        ArrayList<Student> list = new ArrayList<Student>();
        System.out.println("\t\t教师授课评教系统");
        System.out.println("1、查询所有学生列表\t2、添加学生\t3、修改学生\t4、删除操作\t5、录入课程\t6、显示课程\t7、删除课程\t8、录入教师"
                + "\t9、显示教师\t10、教师排课\t11、查询教师与课程号的对应信息\t12、学生登录并授课评价\t13、退出");
        Student[] students = null;
        Course courses[] = null;
        Teacher teachers[] = null;
        Student student[] = null;
        Operator operator = new Operator();
        Scanner scan = new Scanner(System.in);
        itcase:
        while (true) {
            //显示系统主菜单
            System.out.println("请选择您的功能:");
            int choice = scan.nextInt();// 接收用户的选择
            switch (choice) {
                case 1:              // 输入学生信息
                    //执行查询所有学生列表的操作
                    operator.showAllStudent(list);
                    break;
                case 2:
                    //添加学生
                    operator.addStudents(list);
                    break;
                case 3:
                    //修改学生
                    operator.reviseStudent(list);
                    break;
                case 4:
                    //删除学生
                    operator.delStudent(list);
                    break;
                case 5://录入课程
                    System.out.println("请输入课程数：");
                    int n = scan.nextInt();
                    courses = new Course[n];
                    operator.addCourses(courses);
                    break;
                case 6: // 显示课程
                    operator.displayCourses(courses);
                    break;
                case 7://删除课程
                    operator.delCourses(courses);
                    break;
                case 8: // 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 9:// 显示教师
                    operator.displayTeachers(teachers);
                    break;
                case 10:// 教师排课
                    operator.assignTeachCourses(teachers, courses);
                    break;
                case 11://查询教师与课程号的对应信息
                    operator.showCourses(teachers, courses);
                    break;
                case 12:// 学生登录并授课评价
                    Scanner scanf = new Scanner(System.in);
                    System.out.println("请输入您的学号:");
                    int studentId = scanf.nextInt();
                    System.out.println("请输入您的密码：");
                    int passworld = scanf.nextInt();
                    if (inputEvaluate(studentId, passworld, list)) {
                        System.out.println("您已经可以对老师进行评教！");
                        operator.evaluate(teachers);
                    } else {
                        System.out.println("学号或密码不匹配,登录错误！");
                    }
                    break;
                case 13:// 退出
                    System.out.println("退出学生评教管理系统！");
                    break itcase;
                default://输入非选择项
                    System.out.println("非法命令！");
            }
        }
    }
}