Java编写程序片段，定义表示课程的类Cours

public class Course {
    private String courseName;
    private int courseNumber;
    private int prerequisiteCourseNumber;

    public void setCourseName(String courseName) {
        this.courseName = courseName;
    }

    public void setCourseNumber(int courseNumber) {
        this.courseNumber = courseNumber;
    }

    public void setPrerequisiteCourseNumber(int prerequisiteCourseNumber) {
        this.prerequisiteCourseNumber = prerequisiteCourseNumber;
    }

    public String getCourseName() {
        return courseName;
    }

    public int getCourseNumber() {
        return courseNumber;
    }

    public int getPrerequisiteCourseNumber() {
        return prerequisiteCourseNumber;
    }

    public static void main(String[] args) {
        Course course = new Course();
        course.setCourseName("Java Programming");
        course.setCourseNumber(123);
        course.setPrerequisiteCourseNumber(456);

        System.out.println("Course Name: " + course.getCourseName());
        System.out.println("Course Number: " + course.getCourseNumber());
        System.out.println("Prerequisite Course Number: " + course.getPrerequisiteCourseNumber());
    }
}