The constructor method of a class is __init__(self)
-True or False?
# STAY HOME # STAY SAFE
def __init__(self): function of a class in python program is the constructor of the class. It is always called whenever an object of the class is created. It basically initializes the data members of a class. It may or may not have arguments. If the constructor has arguments then it is called as parametrized constructor and if it doesn't have any arguments then it is called as default constructor.
=> The given statement is true.
In PYTHON: Assume there is a class Animal, containing a method with the header: def __init__(self). What statement will create an Animal object and store it in the variable 'cat'.
Take the class Person. class Person: """Person class""" def __init__(self, lname, fname, addy=''): self._last_name = lname self._first_name = fname self._address = addy def display(self): return self._last_name + ", " + self._first_name + ":" + self._address Implement derived class Student In the constructor Add attribute major, default value 'Computer Science' Add attribute gpa, default value '0.0' Add attribute student_id, not optional Consider all private Override method display() Test your code with the following driver: # Driver my_student = Student(900111111, 'Song', 'River')...
In python class Customer: def __init__(self, customer_id, last_name, first_name, phone_number, address): self._customer_id = int(customer_id) self._last_name = str(last_name) self._first_name = str(first_name) self._phone_number = str(phone_number) self._address = str(address) def display (self): return str(self._customer_id) + ", " + self._first_name + self._last_name + "\n" + self._phone_number + "\n" + self._address customer_one = Customer("694", "Abby", "Boat", "515-555-4289", "123 Bobby Rd", ) print(customer_one.display()) customer_two = Customer ("456AB", "Scott", "James", "515-875-3099", "23 Sesame Street Brooklyn, NY 11213") print(customer_two.display()) Use Customer class remove the address attribute.Place the code...
Consider the __init__ constructor method for the Python implementation of a node within a binary tree. The binary tree will aim to require minimal space by having only one tree node per search key. How would this constructor method differ between a Set and a Map? How might this constructor method differ between a Map and a Multi-map? How might this constructor method differ between a Set and a Multi-Set?
In Python: Which keyword should be replaced instead of X? class Class(Car): def __init__ (self,arg1,arg2): X.__init__(arg1,arg2) Question 21 options: class def super() super
PYTHON 3.8 class student(): def __init__(self, name = 'Bill', grade = 9, subjects = ['math','science']): self.name = name self.grade = grade self.subjects = subjects def add_subjects(self): print('Current subjects:') print(self.subjects) more_subjects = True while more_subjects == True: subject_input = input('Enter a subject to add: ') if subject_input == '': more_subjects = False print(self.subjects) else: self.subjects.append(subject_input) print(self.subjects) m = student()...
[21] The following code demonstrates the concept of method class Employee: def_init__(self): def bonus(self): return self.salary * 0.05 class Staff(Employee): def __init__(self): def bonus(self): return self.salary * 0.10 • Previous TI
PYTHON
--------------------------------------------------------
class LinkedList:
def __init__(self):
self.__head = None
self.__tail = None
self.__size = 0
# Return the head element in the list
def getFirst(self):
if self.__size ==
0:
return
None
else:
return
self.__head.element
# Return the last element in the list
def getLast(self):
if self.__size ==
0:
return
None
else:
return
self.__tail.element
# Add an element to the beginning of the
list
def addFirst(self, e):
newNode = Node(e) #
Create a new node
newNode.next =
self.__head # link...
Python 3> Make a class called BMW: Parameterized constructor with three instance variables (attributes): Hint: def __init__(self, make, model, year) Methods in BMW parent class (can leave as method stubs for now): startEngine() -must print "The engine is now on." stopEngine() -must print "The engine is now off." Make another class called ThreeSeries -Must inherit BMW Hint: class ThreeSeries(BMW): -Also passes the three attributes of the parent class and invoke parent Hint: BMW.__init__(self, cruiseControlEnabled, make, model, year) -Constructor must have...
(python please!)
[21] The following code demonstrates the concept of method class Employee: def _init__(self): def bonus(self): return self.salary * 0.05 class Staff(Employee): def __init__(self): def bonus(self): return self.salary * 0.10