用java代码写一个学生管理系统
时间: 2023-03-12 10:07:18 浏览: 58
答:我可以给你提供一些Java代码,用来构建一个学生管理系统。首先,创建一个类,用来存储学生的信息,比如学号,姓名,性别,年龄,学校等;然后,创建一个类,用来存储学生的成绩,比如数学,英语,语文等;最后,创建一个类,用来处理学生信息和成绩。
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用java代码写一个学生选课管理系统
好的,我可以给你提供一个学生选课管理系统的Java代码框架,你可以在此基础上进行修改和完善。以下是代码:
```java
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class StudentCourseManagementSystem {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
List<Student> studentList = new ArrayList<>();
List<Course> courseList = new ArrayList<>();
// 初始化课程信息
// 例如:courseList.add(new Course(1, "Java程序设计", 3));
// ...
while (true) {
System.out.println("----------------------------");
System.out.println("欢迎进入学生选课管理系统,请输入对应数字进行操作:");
System.out.println("1. 学生注册");
System.out.println("2. 学生登录");
System.out.println("3. 查看课程列表");
System.out.println("4. 学生选课");
System.out.println("5. 学生退课");
System.out.println("6. 查看已选课程");
System.out.println("7. 退出系统");
System.out.println("----------------------------");
int choice = scanner.nextInt();
switch (choice) {
case 1:
// 学生注册
System.out.println("请输入学生姓名:");
String name = scanner.next();
System.out.println("请输入学生年龄:");
int age = scanner.nextInt();
System.out.println("请输入学生性别:");
String gender = scanner.next();
System.out.println("请输入学生学号:");
String id = scanner.next();
System.out.println("请输入学生密码:");
String password = scanner.next();
Student student = new Student(name, age, gender, id, password);
studentList.add(student);
System.out.println("注册成功!");
break;
case 2:
// 学生登录
System.out.println("请输入学生学号:");
String loginId = scanner.next();
System.out.println("请输入学生密码:");
String loginPassword = scanner.next();
boolean loginSuccess = false;
for (Student s : studentList) {
if (s.getId().equals(loginId) && s.getPassword().equals(loginPassword)) {
System.out.println("登录成功!");
loginSuccess = true;
break;
}
}
if (!loginSuccess) {
System.out.println("登录失败,请检查学号或密码!");
}
break;
case 3:
// 查看课程列表
System.out.println("课程列表如下:");
for (Course c : courseList) {
System.out.println(c.getId() + " " + c.getName() + " " + c.getCredit());
}
break;
case 4:
// 学生选课
System.out.println("请输入要选课的学生学号:");
String selectId = scanner.next();
System.out.println("请输入要选的课程编号:");
int selectCourseId = scanner.nextInt();
boolean selectSuccess = false;
// 选课操作
// ...
break;
case 5:
// 学生退课
System.out.println("请输入要退课的学生学号:");
String dropId = scanner.next();
System.out.println("请输入要退的课程编号:");
int dropCourseId = scanner.nextInt();
boolean dropSuccess = false;
// 退课操作
// ...
break;
case 6:
// 查看已选课程
System.out.println("请输入要查看的学生学号:");
String viewId = scanner.next();
// 查看已选课程操作
// ...
break;
case 7:
// 退出系统
System.exit(0);
break;
default:
System.out.println("输入有误,请重新输入!");
break;
}
}
}
}
class Student {
private String name;
private int age;
private String gender;
private String id;
private String password;
private List<Course> selectedCourses;
public Student(String name, int age, String gender, String id, String password) {
this.name = name;
this.age = age;
this.gender = gender;
this.id = id;
this.password = password;
selectedCourses = new ArrayList<>();
}
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 getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public List<Course> getSelectedCourses() {
return selectedCourses;
}
public void setSelectedCourses(List<Course> selectedCourses) {
this.selectedCourses = selectedCourses;
}
public void addSelectedCourse(Course course) {
selectedCourses.add(course);
}
public void removeSelectedCourse(Course course) {
selectedCourses.remove(course);
}
}
class Course {
private int id;
private String name;
private int credit;
public Course(int id, String name, int credit) {
this.id = id;
this.name = name;
this.credit = credit;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getCredit() {
return credit;
}
public void setCredit(int credit) {
this.credit = credit;
}
}
```
这段代码提供了一个基本的学生选课管理系统框架,包含学生注册、登录、查看课程列表、选课、退课、查看已选课程等功能。你可以在此基础上进行改进和完善。
用Java代码写一个学生选课管理系统
好的,我可以为您提供一个学生选课管理系统的Java代码框架,您可以根据自己的需要进行修改和完善。
```
import java.util.ArrayList;
import java.util.Scanner;
public class Course {
private String name;
private String teacher;
private int credit;
private int capacity;
private int enrolled;
public Course(String name, String teacher, int credit, int capacity) {
this.name = name;
this.teacher = teacher;
this.credit = credit;
this.capacity = capacity;
enrolled = 0;
}
public String getName() {
return name;
}
public String getTeacher() {
return teacher;
}
public int getCredit() {
return credit;
}
public int getCapacity() {
return capacity;
}
public int getEnrolled() {
return enrolled;
}
public void setEnrolled(int enrolled) {
this.enrolled = enrolled;
}
}
public class Student {
private String name;
private ArrayList<Course> courses;
public Student(String name) {
this.name = name;
courses = new ArrayList<>();
}
public String getName() {
return name;
}
public void addCourse(Course course) {
courses.add(course);
}
public void removeCourse(Course course) {
courses.remove(course);
}
public ArrayList<Course> getCourses() {
return courses;
}
public int getTotalCredit() {
int totalCredit = 0;
for (Course course : courses) {
totalCredit += course.getCredit();
}
return totalCredit;
}
}
public class CourseManagementSystem {
private ArrayList<Course> courses;
private ArrayList<Student> students;
public CourseManagementSystem() {
courses = new ArrayList<>();
students = new ArrayList<>();
}
public void addCourse(Course course) {
courses.add(course);
}
public void removeCourse(Course course) {
courses.remove(course);
}
public ArrayList<Course> getCourses() {
return courses;
}
public void addStudent(Student student) {
students.add(student);
}
public void removeStudent(Student student) {
students.remove(student);
}
public ArrayList<Student> getStudents() {
return students;
}
public void enroll(Student student, Course course) {
if (course.getEnrolled() < course.getCapacity()) {
student.addCourse(course);
course.setEnrolled(course.getEnrolled() + 1);
} else {
System.out.println("Sorry, the course is full.");
}
}
public void withdraw(Student student, Course course) {
student.removeCourse(course);
course.setEnrolled(course.getEnrolled() - 1);
}
}
public class Main {
public static void main(String[] args) {
CourseManagementSystem cms = new CourseManagementSystem();
Course c1 = new Course("Java Programming", "John Smith", 3, 30);
Course c2 = new Course("Database Management", "Mary Johnson", 3, 25);
Course c3 = new Course("Web Development", "Bob Brown", 4, 35);
cms.addCourse(c1);
cms.addCourse(c2);
cms.addCourse(c3);
Student s1 = new Student("Tom");
Student s2 = new Student("Jerry");
cms.addStudent(s1);
cms.addStudent(s2);
cms.enroll(s1, c1);
cms.enroll(s1, c2);
cms.enroll(s2, c1);
cms.enroll(s2, c3);
System.out.println("Courses:");
for (Course course : cms.getCourses()) {
System.out.println(course.getName() + " - " + course.getTeacher() + " - " + course.getEnrolled() + "/" + course.getCapacity());
}
System.out.println();
System.out.println("Students:");
for (Student student : cms.getStudents()) {
System.out.println(student.getName() + " - Total Credit: " + student.getTotalCredit());
System.out.println("Enrolled Courses:");
for (Course course : student.getCourses()) {
System.out.println(course.getName() + " - " + course.getTeacher() + " - " + course.getCredit());
}
System.out.println();
}
cms.withdraw(s1, c1);
System.out.println("Courses:");
for (Course course : cms.getCourses()) {
System.out.println(course.getName() + " - " + course.getTeacher() + " - " + course.getEnrolled() + "/" + course.getCapacity());
}
System.out.println();
System.out.println("Students:");
for (Student student : cms.getStudents()) {
System.out.println(student.getName() + " - Total Credit: " + student.getTotalCredit());
System.out.println("Enrolled Courses:");
for (Course course : student.getCourses()) {
System.out.println(course.getName() + " - " + course.getTeacher() + " - " + course.getCredit());
}
System.out.println();
}
}
}
```
这段代码实现了一个简单的学生选课管理系统,包括课程和学生两个类,以及一个管理系统类。您可以根据自己的需求进行修改和完善。