How to use Java to write a simple student course selection time conflict detection system?

How to use Java to write a simple student course selection time conflict detection system?

As college students choose more courses, students often face a problem, which is how to avoid time conflicts in course selection. In real life, many students have experienced the embarrassing situation of discovering time conflicts after selecting courses. In order to solve this problem, today we will learn how to use Java to write a simple student course selection time conflict detection system.

First of all, we need to understand the basic information about students’ course selection. A student usually has a course selection list that contains the courses that the student takes. Each course has a course number, course title, and class time.

In Java, we can define a class called Course to represent a course. The code is as follows:

public class Course {
    private String courseId;
    private String courseName;
    private String courseTime;
    
    public Course(String courseId, String courseName, String courseTime) {
        this.courseId = courseId;
        this.courseName = courseName;
        this.courseTime = courseTime;
    }
    
    // Getter and setter methods
}

Next, we need to implement a class called CourseSchedule to represent a student Course selection list and provide a way to detect whether there is a time conflict. The code is as follows:

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

public class CourseSchedule {
    private List<Course> courses;
    
    public CourseSchedule() {
        this.courses = new ArrayList<>();
    }
    
    public void addCourse(Course course) {
        courses.add(course);
    }
    
    public boolean hasTimeConflict() {
        for (int i = 0; i < courses.size(); i++) {
            Course course1 = courses.get(i);
            for (int j = i + 1; j < courses.size(); j++) {
                Course course2 = courses.get(j);
                if (course1.getCourseTime().equals(course2.getCourseTime())) {
                    return true;
                }
            }
        }
        return false;
    }
}

In this CourseSchedule class, we use a List to store the courses students take. The addCourse method is used to add courses to the list. The hasTimeConflict method is used to detect whether there is a time conflict. We use two nested for loops to compare whether the class times of each two courses are the same. If they are the same, there is a conflict.

Finally, we can write a simple test program to verify whether our course selection time conflict detection system works properly. The code is as follows:

public class Main {
    public static void main(String[] args) {
        Course course1 = new Course("C001", "数学", "周一 8:00-10:00");
        Course course2 = new Course("C002", "英语", "周一 9:00-11:00");
        Course course3 = new Course("C003", "计算机科学", "周一 10:00-12:00");
        
        CourseSchedule schedule = new CourseSchedule();
        schedule.addCourse(course1);
        schedule.addCourse(course2);
        schedule.addCourse(course3);
        
        if (schedule.hasTimeConflict()) {
            System.out.println("存在时间冲突");
        } else {
            System.out.println("不存在时间冲突");
        }
    }
}

In this test program, we create three courses and add them to a CourseSchedule object. Then, we call the hasTimeConflict method to detect whether there is a time conflict, and finally output the result.

Through the implementation of this simple course selection time conflict detection system, we can better help students avoid encountering time conflicts in the course selection process. Of course, this is just a simple example. In fact, the course selection system may also involve more information, such as the number of course candidates, classroom capacity, etc. However, this example can help us understand the basic ideas and methods of how to use Java to write a course selection time conflict detection system.

To sum up, implementing a student course selection time conflict detection system can help students successfully complete the course selection process and avoid the embarrassment of time conflicts. By using the Java programming language, we can easily design and implement this system. I hope this article is helpful to you, thank you for reading!

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