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; } } }}外汇MT4教程https://www.kaifx.cn/mt4.html
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
java
**粗体** _斜体_ [链接](http://example.com) `代码` - 列表 > 引用。你还可以使用@来通知其他用户。