Question: Write a program to design an appointment calendar. An appointment includes a description, date, starting time, and ending time. Supply a user interface to add appointments, remove canceled appointments, and print out a list of appointments for a particular day. Appointments should not be duplicated for a given time and date.
Include a class AppointmentMenu to print the menu to the screen and accept user input. AppointmentMenu creates an AppointmentCalendar and then calls the appropriate methods to add, cancel, show, or quit.
Include a class AppointmentCalendar that is not coupled with the Scanner or PrintStream classes. (In other words, all println statements should be in AppointmentMenu.) AppointmentCalendar will include an arrayList of Appointments, a method to add Appointments, a method to cancel Appointments, and return the Appointments for a selected day.
Include a class Appointments which holds the input of description, date, and time. It should have a method to format the output for printing by the AppointmentMenu, a method to check to see if two appointments are equal so an appointment is not duplicated for a given date and time, and a method to check for a certain date when show and cancel are called.
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