Pets, Part A through D

Author: pirple-author

classes/Pets-Part-A.py

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+##
+# Pets, Part A Lecture
+##
+
+# -*- coding: utf-8 -*-
+
+# Define a class
+class Pet:
+
+  # Define a function which refers to the class in order to initiliaze the attributes of the class
+  def __init__(self,n,a,h,p):
+    # Define an attribute and assign the value of the n argument
+    self.name = n
+    # Define an attribute and assign the value of the a argument
+    self.age = a
+    # Define an attribute and assign the value of the h argument
+    self.hunger = h
+    # Define an attribute and assign the value of the p argument
+    self.playful = p
+
+# Define a class
+class Pet:
+
+  # Define a function which refers to the class in order to initiliaze the attributes of the class
+  def __init__(self,name,a,h,p):
+    # Define an attribute and assign the value of the name argument
+    self.name = name
+    # Define an attribute and assign the value of the a argument
+    self.age = a
+    # Define an attribute and assign the value of the h argument
+    self.hunger = h
+    # Define an attribute and assign the value of the p argument
+    self.playful = p
+
+  # getters
+  # Define a function to return an attribute of the class
+  def getName(self):
+    # The function will return the name attribute
+    return self.name
+
+  # setters
+  # Define a function which assigns a value to an attribute of the class
+  def setName(self,name):
+    self.name = name
+
+# Define a class
+class Pet:
+
+  # Define a function which refers to the class in order to initiliaze the attributes of the class
+  def __init__(self,name,a,h,p):
+    # Define an attribute and assign the value of the name argument
+    self.name = name
+    # Define an attribute and assign the value of the a argument
+    self.age = a
+    # Define an attribute and assign the value of the h argument
+    self.hunger = h
+    # Define an attribute and assign the value of the p argument
+    self.playful = p
+
+  # getters
+  # Define a function to return an attribute of the class
+  def getName(self):
+    # The function will return the name attribute
+    return self.name
+
+  # setters
+  # Define a function which assigns a value to an attribute of the class
+  def setName(self,x):
+    self.name = x
+
+
+# Define a class
+class Pet:
+
+  # Define a function which refers to the class in order to initiliaze the attributes of the class
+  def __init__(self,name,a,h,p):
+    # Define an attribute and assign the value of the name argument
+    self.name = name
+    # Define an attribute and assign the value of the a argument
+    self.age = a
+    # Define an attribute and assign the value of the h argument
+    self.hunger = h
+    # Define an attribute and assign the value of the p argument
+    self.playful = p
+
+  # getters
+  # Define a function to return an attribute of the class
+  def getName(self):
+    # The function will return the name attribute
+    return self.name
+
+  # Define a function to return an attribute of the class
+  def getAge(self):
+    # The function will return the age attribute
+    return self.age
+
+  # Define a function to return an attribute of the class
+  def getHunger(self):
+    # The function will return the hunger attribute
+    return self.hunger
+
+  # Define a function to return an attribute of the class
+  def getPlayful(self):
+    # The function will return the playful attribute
+    return self.playful
+
+  # setters
+  # Define a function which assigns a value to an attribute of the class
+  def setName(self,xname):
+    self.name = xname
+
+  # Define a function which assigns a value to an attribute of the class
+  def setAge(self,Age):
+    self.age = Age
+
+  # Define a function which assigns a value to an attribute of the class
+  def setHunger(self,hunger):
+    self.hunger = hunger
+
+  # Define a function which assigns a value to an attribute of the class
+  def setPlayful(self,play):
+    self.playful = play
+
+# Create an instance of the Pet class and assign values to the attributes
+Pet1 = Pet("Jim",3,False,True)
+
+# Print the value returned by the getName() function of the Pet1 instance
+# This will print "Jim"
+print(Pet1.getName())
+#Print the value returned by the getPlayful() function of the Pet1 instance
+# This will print True
+print(Pet1.getPlayful())
+
+# Call the setName(xname) function of the Pet1 instance
+# This will assign a new value to the name attribute of the Pet1 instance
+Pet1.setName("Snowball")
+# Print the value returned by the getName() function of the Pet1 instance
+# This will print "Snowball"
+print(Pet1.getName())
+
+# Access and print the name attribute of the Pet1 instance
+# This will print "Snowball"
+print(Pet1.name)
+
+# Assign the value "Jim" to the name attribute of the Pet1 instance
+Pet1.name = "Jim"
+# Access and print the name attribute of the Pet1 instance
+# This will print "Jim"
+print(Pet1.name)

classes/Pets-Part-B.py

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+##
+# Pets, Part B Lecture
+##
+
+# -*- coding: utf-8 -*-
+
+
+# Define a class
+class Pet:
+
+  # Define a function which refers to the class in order to initiliaze the attributes of the class
+  def __init__(self,name,a,h,p):
+    # Define an attribute and assign the value of the name argument
+    self.name = name
+    # Define an attribute and assign the value of the a argument
+    self.age = a
+    # Define an attribute and assign the value of the h argument
+    self.hunger = h
+    # Define an attribute and assign the value of the p argument
+    self.playful = p
+
+  # getters
+  # Define a function to return an attribute of the class
+  def getName(self):
+    # The function will return the name attribute
+    return self.name
+
+  # Define a function to return an attribute of the class
+  def getAge(self):
+    # The function will return the age attribute
+    return self.age
+
+  # Define a function to return an attribute of the class
+  def getHunger(self):
+    # The function will return the hunger attribute
+    return self.hunger
+
+  # Define a function to return an attribute of the class
+  def getPlayful(self):
+    # The function will return the playful attribute
+    return self.playful
+
+  # setters
+  # Define a function which assigns a value to an attribute of the class
+  def setName(self,xname):
+    self.name = xname
+
+  # Define a function which assigns a value to an attribute of the class
+  def setAge(self,Age):
+    self.age = Age
+
+  # Define a function which assigns a value to an attribute of the class
+  def setHunger(self,hunger):
+    self.hunger = hunger
+
+  # Define a function which assigns a value to an attribute of the class
+  def setPlayful(self,play):
+    self.playful = play
+
+
+# The class is commented becuse two errors exist. One is in line 65 where the self argument is missing
+# and the second error is in line 81 where the code should be self.FavoriteToy
+# Define a class which inherits the Pet class
+#class Dog(Pet):
+#
+#  # Define a function which refers to the class in order to initiliaze the attributes of the class
+#  def __init__(self,name,age,hunger,playful,breed,FavoriteToy):
+#    # Call the initializer of the parent class with the proper parameters
+#    # Error - the self argument is missing
+#    Pet.__init__(name,age,hunger,playful)
+#
+#    # The following line will return an error if uncommented
+#    #self.__init__(name,age,hunger,playful)
+#
+#    # Define an attribute and assign the value "None"
+#   self.breed = breed
+#    self.FavoriteToy = FavoriteToy
+#
+#  # Define unction which refers to the class
+#  def wantsToPlay(self):
+#
+#    # IF condition is True
+#    if self.playful == True:
+#      # Define the string which the function returns
+#      # Error - It should be self.FavoriteToy
+#      return("Dog wants to play with " + FavoriteToy)
+#
+#    # ELSE condition
+#    else:
+#      # Define the string which the function returns
+#      return("Dog doesn't want to play")
+#
+# Create an instance of the Dog class and assign values to the attributes
+#huskyDog = Dog("Snowball",5,False,True,"Husky","Stick")
+#
+# Assign to a variable the result returned by the wantsToPlay() function of the huskyDog instance
+#Play = huskyDog.wantsToPlay()
+#
+# Print the value of the Play variable
+# This will print "Dog wants to play with Stick"
+#print(Play)
+
+
+
+# Define a class which inherits the Pet class
+class Dog(Pet):
+
+  # Define a function which refers to the class in order to initiliaze the attributes of the class
+  def __init__(self,name,age,hunger,playful,breed,FavoriteToy):
+    # Call the initializer of the parent class with the proper parameters
+    Pet.__init__(self,name,age,hunger,playful)
+
+    # The following line will return an error if uncommented
+    #self.__init__(name,age,hunger,playful)
+
+    # Define an attribute and assign the value "None"
+    self.breed = breed
+    self.FavoriteToy = FavoriteToy
+
+  # Define unction which refers to the class
+  def wantsToPlay(self):
+
+    # IF condition is True
+    if self.playful == True:
+      # Define the string which the function returns
+      return("Dog wants to play with " + self.FavoriteToy)
+
+    # ELSE condition
+    else:
+      # Define the string which the function returns
+      return("Dog doesn't want to play")
+
+# Create an instance of the Dog class and assign values to the attributes
+huskyDog = Dog("Snowball",5,False,True,"Husky","Stick")
+
+# Assign to a variable the result returned by the wantsToPlay() function of the huskyDog instance
+Play = huskyDog.wantsToPlay()
+
+# Print the value of the Play variable
+# This will print "Dog wants to play with Stick"
+print(Play)
+
+# Assign the value False to the playful attribute of the huskyDog instance
+huskyDog.playful = False
+
+# Assign to a variable the result returned by the wantsToPlay() function of the huskyDog instance
+Play = huskyDog.wantsToPlay()
+
+# Print the value of the Play variable
+# This will print "Dog doesn't want to play"
+print(Play)