61.
How can you create a static variable in a Python class?

62.
What will be the output of the following Python code?
>>> class demo():
	def __repr__(self):
		return '__repr__ built-in function called'
	def __str__(self):
		return '__str__ built-in function called'
>>> s=demo()
>>> print(s)

63.
What is the purpose of the @property decorator in Python classes?

65.
What will be the output of the following Python code?
>>> class demo():
	def __repr__(self):
		return '__repr__ built-in function called'
	def __str__(self):
		return '__str__  built-in function called'
>>> s=demo()
>>> print(s)

66.
What will be the output of the following Python code?
class test:
     def __init__(self,a="Hello World"):
         self.a=a
 
     def display(self):
         print(self.a)
obj=test()
obj.display()