java选课系统代码

Java选课系统代码是一个用Java语言编写的程序，用于实现学生选课和管理课程的功能。以下是一个简单的Java选课系统代码示例：

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

class Course {
    private String name;
    private int capacity;
    private List<String> students;

    public Course(String name, int capacity) {
        this.name = name;
        this.capacity = capacity;
        this.students = new ArrayList<>();
    }

    public String getName() {
        return name;
    }

    public int getCapacity() {
        return capacity;
    }

    public List<String> getStudents() {
        return students;
    }

    public boolean addStudent(String studentName) {
        if (students.size() < capacity) {
            students.add(studentName);
            return true;
        } else {
            return false;
        }
    }
}

class CourseSystem {
    private List<Course> courses;

    public CourseSystem() {
        this.courses = new ArrayList<>();
    }

    public void addCourse(Course course) {
        courses.add(course);
    }

    public void displayCourses() {
        System.out.println("Available courses:");
        for (Course course : courses) {
            System.out.println(course.getName() + " (Capacity: " + course.getCapacity() + ")");
        }
    }

    public boolean enrollCourse(String courseName, String studentName) {
        for (Course course : courses) {
            if (course.getName().equals(courseName)) {
                return course.addStudent(studentName);
            }
        }
        return false;
    }
}

public class Main {
    public static void main(String[] args) {
        CourseSystem courseSystem = new CourseSystem();

        // 添加课程
        Course course1 = new Course("Math", 30);
        Course course2 = new Course("English", 25);
        courseSystem.addCourse(course1);
        courseSystem.addCourse(course2);

        // 显示课程
        courseSystem.displayCourses();

        // 学生选课
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter the course name: ");
        String courseName = scanner.nextLine();
        System.out.print("Enter your name: ");
        String studentName = scanner.nextLine();

        boolean success = courseSystem.enrollCourse(courseName, studentName);
        if (success) {
            System.out.println("Enrollment successful!");
        } else {
            System.out.println("Enrollment failed. The course may be full or not available.");
        }
    }
}

这段代码实现了一个简单的选课系统，包括添加课程、显示课程和学生选课的功能。你可以根据需要进行修改和扩展。