Question

python question

2. In a file called parks_test.py, test your class definitions created above as follows: • create a Park object • print the Park object • print the cost of visiting the Park above for some number of days • change the area of the Park • print only the park name and the updated area of the Park, with appro- priate labels • create 3 ProvincialPark objects • print the ProvincialPark objects • change the rating of the first ProvincialPark • print only the park name and the updated rating attribute of the first ProvincialPark, with appropriate labels • print the cost of visiting each of the ProvincialParks for some number of days • create 2 National Park objects • print the Nationalpark objects • change what the first National Park is known for • print only the park name and the updated knownFor attribute of the first Nationalpark, with appropriate labels • print the cost of visiting each of the National Parks for some number of days • print the total number of Park objects that were created

Answer 1

Please find the program below, refer the programs screenshot below for indentation, line number, correctness etc:

The class ProvincialPark and NationalPark are inherited from the base class Park

class Park:

    def __init__(self, name, location, establish, cost_pp=10, area=100):
        self.name = name
        self.cost_pp = cost_pp
        self.area = area
        self.location = location
        self.establish = establish

    def display_cost(self, days=1):
        print("\nCost for ", days, " days in ", self.name, " is $", float(self.cost_pp * days))

    def update_area(self, area=100):
        self.area = area
        print("\nPark name: ", self.name)
        print("Update park area: ", self.area)

    def display(self):
        print("\nPark name: ", self.name)
        print("Location: ", self.location)
        print("Area covered (km^2): ", self.area)
        print("Year established: ", self.establish)


class ProvincialPark(Park):
    def __init__(self, name, location, establish, cost_pp=20, area=200, rating=1):
        super(ProvincialPark, self).__init__(name, location, establish, cost_pp, area)
        self.rating = rating

    def display(self):
        super().display()
        print("Park rating: ", self.rating)

    def update_rating(self, rating):
        self.rating = rating
        print("\nPark name: ", self.name)
        print("Updated rating: ", self.rating)


class NationalPark(Park):
    def __init__(self, name, location, establish, cost_pp=20, area=200, known_for="Nothing"):
        super(NationalPark, self).__init__(name, location, establish, cost_pp, area)
        self.known_for = known_for

    def display(self):
        super().display()
        print("Known for: ", self.known_for)

    def update_known_for(self, known_for):
        self.known_for = known_for
        print("\nPark name: ", self.name)
        print("Updated known for: ", self.known_for)


parks = []
p1 = Park("General Park", "NS", 1963, 5, 300)
parks.append(p1)
p1.display()
p1.display_cost(2)
p1.update_area(400)

p2 = ProvincialPark("Big Park", "NL", 1950, 35, 200, 3)
parks.append(p2)
p2.display()

p3 = ProvincialPark("Small Park", "ON", 1980, 30, 150, 2)
parks.append(p3)
p3.display()

p4 = ProvincialPark("Medium Park", "BC", 1992, 35, 165, 3)
parks.append(p4)
p4.display()

p2.update_rating(1)

p2.display_cost(3)
p3.display_cost(3)


p5 = NationalPark("Gros Morne", "NL", 1973, 40, 1805, "Freshwater Fjords")
parks.append(p5)
p5.display()

p6 = NationalPark("Banff", "AB", 1980, 40, 6641, "Big Lake")
parks.append(p6)
p6.display()

p5.update_known_for("Floating lilies")

print("\nTotal number of Park objects is: ", len(parks))

Screenshots of the program with the output, refer the line numbers:

park.py class Park: 1 2 def init_(self, name, location, establish, cost_pp=10, area=100): self.name = name 4 self.cost_pp = cost_pp self.area = area 6 self.location = location self.establish = establish 7 9 def display_cost (self, days=1): print("\nCost for ", days, " days in ", self. name, " is $", float(self.cost_pp days)) 10 11 12 def update_area( self, area=100 ) : 13 14 self.area = area print ("\nPark name: ", self. name) 15 print("Update park area: ", self.area) 16 17 def display(self) : print("\nPark name: ", self. name) print("Location: ", self. location ) print("Area cove red (km^2): ", self.area) print ("Year established : ", self.establish) 18 19 20 21 22 23 24 aclass Provincial Park( Park) : 25 _init_(self, name, location, establish, cost_pp=20, area=200, rating=1): super (Provincial Park, self).init_(name, location, establish, cost_pp, a rea) self.rating = rating def 26 27 28 29 def display(self) : super ().display () print("Park rating : ", self.rating) 30 Of 31 32 33 def update_rating ( self, rating): self.rating = rating print ("\nPark name: ", self. name ) print("Updated rating: ", self.rating) 34 35 36 37 38 39

park.py print ("Updated rating: ", self. rating) 37 38 39 class Nationa lPa rk ( Pa rk) : 40 init_( self, name, location, establish, cost_pp=20, area=200, known_for="Nothing" ) : super (National Park, self).init_(name, location, establish, cost_pp, area) self.known_for = known_for def 41 42 43 44 def display(self) : super().display () 45 46 print("Known for: ", self.known_for) 47 48 def update_known_for (self, known_fo r) : 49 self.known_for = known_for print("'\nPark name: ", self. name) print("Updated known for: ", self.known_for) 50 51 52 53 54 parks = [] 55 p1 = Park("Gene ral Park", "NS", 1963, 5, 300) parks.append (p1) p1.display() p1.display_cost (2) p1.update_area ( 400) 56 57 58 59 60 61 p2 = Provincial Pa rk( '"Big Park", "NL", 1950, 35, 200, 3) parks.append(p2) p2.display() 62 63 64 65 p3 = Provincial Pa rk( '"'Small Park", "ON", 1980, 30, 150, 2) 66 parks.append(p3) 67 p3.display() 68 69 p4 Provincia l Pa rk( 'Medium Park", "BC", 1992, 35, 165, 3) parks.append(p4) p4.display() 70 71 72 73 p2.update rating (1) 74 75

park.py parks.append(p1) 57 p1.display) p1.display_cost (2) p1.update_area ( 400 ) 58 59 60 61 p2 = Provincia l Pa rk ( ' Big parks.append(p2 ) p2.display() 1950, 35, 200, 3) Park'", "NL", 62 63 64 65 p3 = Provincial Pa rk ( "'Small Park", "ON", 1980, 30, 150, 2) parks.append(p3) p3.display) 66 67 68 69 p4 = Provincia l Pa rk( 'Medium Park", "BC", 1992, 35, 165, 3) 70 parks.append(p4) 71 p4.display() 72 73 p2.update_rating (1) 74 75 p2.display_cost (3) p3.display_cost (3) 76 77 78 79 p5 = National Park("Gros Morne", "NL", 1973, 40, 1805, "Freshwater Fjords") parks.append(p5) p5.display() 80 81 82 83 p6 = National Park("Banff", "AB", 1980, 40, 6641, "Big Lake") 84 parks.append(p6) p6.display() 85 86 87 p5.update_known_for('Floating lilies") 88 89 print ("\nTotal number of Park objects is: ", len(parks)) 90

Output:

park Users/i338994/PycharmProj ects/test/venv/bin/pyt hon /Users/i338994/ Pycha rmProjects/test/venv/pa rk. py Park name: General Park Location: NS Area covered (km 2): 300 Year establis hed: 1963 Cost for 2 days in General Park is 10.0 Park name: General Park Update park area: 400 Park name: Big Park Location: NL Area covered (km^2): 200 Year establis hed: Park rating: 3 1950 Park name: Small Park. Location: ON Area covered (km 2) 150 Year established: 1980 Park rating: 2 Park name: Medium Park Location: BC Area covered (km^2): 165 Year established: 1992 Park rating: 3 Park name: Big Park Updated rating: 1 Cost for 3 days in Big Park is 105.0 Cost for 3 days in Small Park is $90.0 Park name: Gros Morne Location: NL Area covered (km 2): 1805

Park name: Gros Morne Location: NL Area covered (km^2): 1805 Year establis hed : 1973 Freshwater Fjords Known for: Park name: Banff Location: АВ Area covered (km^2): 6641 Year established: 1980 Known for: Big Lake Park name: Gros Morne Updated known for: Floating lilies Total number of Park objects is: 6 Process finished with exit code 0

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