Quiz: What Is OOP

5 questionsNo time limitPass: 60%+10 XP on first pass

Why object-oriented programming exists, procedural vs OOP, classes and objects with one real example in Python and Java, and an overview of the four pillars.

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Question 1
A class is best described as:
A running programA blueprint from which objects are createdA single objectA function

Question 2

What does this print?

class Counter:
    def __init__(self):
        self.n = 0
    def tick(self):
        self.n += 1
a, b = Counter(), Counter()
a.tick(); a.tick(); b.tick()
print(a.n, b.n)

3 32 11 10 0

Question 3
Which pillar means "show what it does, hide how it works"?
EncapsulationAbstractionInheritancePolymorphism
Question 4
Which is NOT a benefit of OOP?
Code reuseEasier maintenanceData protectionPrograms always run faster
Question 5
An object's data (like speed or brand) is called its:
statebehaviourclassinterface