Object Oriented Programming

This is more difficult in Python and can really frustrate you.

Patience is the key and do not forget to practice.

Object oriented programming quiz

• The property is created

a) Using the property decorator
b) Using the classmethod decorator
c) Making a class a subclass of property

Answer - a) @property

• What is the difference between a class method and a static method?

a) Class methods are passed the calling class, static methods aren't
b) Class methods are faster
c) Class methods are inherited, static methods aren't

Answer - a) refers to the class instance with cls or self

• What are the usual parameter names for the calling instance and the calling class?

a) slf and cls
b) self and cls
c) self and class

Answer - b) self and cls ( it was also referred to in the previous question)

• What method is called just before an object is instantiated?

a) create
b) del
c) init

answer - c) init
(__ is double underscore)

• Fill in the blanks to make the egg attribute strongly private and access it from outside of the class.

class Test:
___egg = 7

t = Test()
print(t._Test____)

Answer - _egg = 7
t = Test()
print(t.Test egg)

• What is the automatic process by which unnecessary objects are deleted to free memory?

a) Garbage collection
b) Rubbish deletion
c) Bit-trash exfoliation

Answer - a) Garbage collection

• class Person:
  def init(self, name):
  self._name = name

  @property
  def name(self):
  return self._name

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def name(self, value):
self._____= value

@name.setter - first-line answer
_name - second line answer

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