Java를 사용하여 간단한 학생 과목 선택 시간 충돌 해결 시스템을 작성하는 방법은 무엇입니까?

public void addCourse(Course course) {
    // 检查选课时间冲突
    boolean conflict = false;
    for (Course selectedCourse : selectedCourses) {
        if (selectedCourse.getTime().equals(course.getTime())) {
            conflict = true;
            break;
        }
    }

    // 如果时间冲突，则拒绝选课
    if (conflict) {
        System.out.println("选课时间冲突！");
    } else {
        // 如果时间不冲突，则添加课程到选课列表中
        selectedCourses.add(course);
        System.out.println("选课成功！");
    }
}

public void removeCourse(Course course) {
    selectedCourses.remove(course);
    System.out.println("退课成功！");
}

public class CourseRegistrationSystem {
    public static void main(String[] args) {
        // 创建学生对象和课程对象
        Student student1 = new Student(1, "张三");
        Student student2 = new Student(2, "李四");
        Course course1 = new Course(1, "Java编程", "John", "星期一 9:00-11:00");
        Course course2 = new Course(2, "数据库管理", "Emily", "星期二 14:00-16:00");
        Course course3 = new Course(3, "Web开发", "David", "星期三 10:00-12:00");

        // 学生1选课和退课测试
        student1.addCourse(course1);
        student1.addCourse(course2);
        student1.addCourse(course3);
        student1.removeCourse(course2);

        // 学生2选课和退课测试
        student2.addCourse(course1);
        student2.addCourse(course3);
        student2.removeCourse(course1);
    }
}