Java programming

Problem 1:

1- Implement a superclass Appointment and subclasses Onetime, Daily, and Monthly. An appointment has a description (for example, see the dentist) and a date.

2- 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 the day of the month matches.

3- Then fill an array of Appointment objects with a mixture of appointments. Have the user enter a date and print out all appointments that occur on that date.