Implement a superclass Appointment and subclasses Onetime, Daily, Monthly. An ap

Question

Implement a superclass Appointment and subclasses Onetime, Daily, Monthly. An appointment has a description(for example, "see the dentist") and a date. Write a method occursOn(year, month, 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. Then fill a list of Appointment(class) objects with a mixture of appointments. Have the user enter a date and print out all appointments that occur on that date.

Test code is provided:

from appointment import Daily, Monthly, Onetime

# Create a list of appointments.
appList = []
appList.append(Daily(1, 1, 2013, "Do pushups"))
appList.append(Daily(15, 1, 2013, "Floss teeth"))
appList.append(Monthly(15, 12, 2012, "Backup data"))
appList.append(Onetime(21, 12, 2012, "Computer Science Final Exam"))
appList.append(Monthly(4, 2, 2013, "Call grandma"))
appList.append(Onetime(12, 4, 2013, "See dentist"))

# Read a date from the user and display all of its appointments until the user
# decides to quit.
day = int(input("Enter the day (0 to quit): "))
while day != 0 :
month = int(input("Enter the month: "))
year = int(input("Enter the year: "))

# Find all of the appointments on the entered date.
for app in appList :
if app.occursOn(day, month, year) :
print(app)

day = int(input("Enter the day (0 to quit): "))

Explanation / Answer

from datetime import date

class Appointment(object):
   def __init__(self,day,month,year,description):
       self.description=description
       self.date=date(year,month,day)
  
   def __unicode__(self):
       return self.description
      
   def occursOn(self,day,month,year):
       if self.date == date(year,month,day):
           return True
       else:
           return False
      
class Onetime(Appointment):
   def __init__(self,day,month,year,description):
       super(Onetime,self).__init__(day,month,year,description)
      
   def __unicode__(self):
       return self.description
      
      
class Daily(Appointment):
   def __init__(self,day,month,year,description):
       super(Daily,self).__init__(day,month,year,description)
      
   def __unicode__(self):
       return self.description
      
   #function over written  
   def occursOn(self,day,month,year):
       return True
       # because daily appointment is true for all days
      
      
class Monthly(Appointment):
   def __init__(self,day,month,year,description):
       super(Monthly,self).__init__(day,month,year,description)
      
   def __unicode__(self):
       return self.description
      
   #function over written  
   def occursOn(self,day,month,year):
       if self.date.day == day:
           return True
       else:
           return False

      
appList = []
appList.append(Daily(1, 1, 2013, "Do pushups"))
appList.append(Daily(15, 1, 2013, "Floss teeth"))
appList.append(Monthly(15, 12, 2012, "Backup data"))
appList.append(Onetime(21, 12, 2012, "Computer Science Final Exam"))
appList.append(Monthly(4, 2, 2013, "Call grandma"))
appList.append(Onetime(12, 4, 2013, "See dentist"))

day = int(input("Enter the day (0 to quit): "))
while day != 0 :
   month = int(input("Enter the month: "))
   year = int(input("Enter the year: "))
   for app in appList :
       if app.occursOn(day,month,year) :
           print(app.description)
   day = int(input("Enter the day (0 to quit): "))  
      

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