i have a skeleton class and i have to fill some methods of this
class. i am having difficulties especially with the findAppointment
method. so this is the problem.
Implement a superclass Appointment and subclasses OneTime,
Daily, and Monthly. An Appointment has a description (for example
“see the dentist”) and a date. Write a method occursOn(int year,
int month, int day) that checks whether the appointment occurs on
that date. For example, for a monthly appointment, you must check
whether...