10. d) Inheritance (Quiz)

Which of the following best describes inheritance?

Which of the following statements is wrong about inheritance?

What is the output of the following piece of code?

class Test:

    def __init__(self):

        self.x = 0

class Derived_Test(Test):

    def __init__(self):

        self.y = 1

def main():

    b = Derived_Test()

    print(b.x, b.y)

main()

What is the output of the following piece of code?

class A():

    def disp(self):

        print(“A disp()”)

class B(A):

    pass

obj = B()

obj.disp()

Suppose B is a subclass of A.

There is a test() method defined in A. How can you call this method from B? what is the line of code you should write inside B’s definition?

Suppose B is a subclass of A.

There is an attribute “hyper = 0” defined in A. How can you refer to this attribute from B and change its value to 1? what is the line of code you should write inside B’s definition?