The OOP Pillars Exam

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

L3

Problem

Given a list of [animal_type, name] pairs, instantiate the appropriate subclass of an abstract Animal class (with an abstract speak()). The 'dog' subclass speaks 'Woof!'; the 'cat' subclass speaks 'Meow!'. For each pair, build the right subclass instance and collect its speak() output as the string '{name} says: {sound}!'. Return the list of these strings in the same order as the input. Implement inheritance and polymorphism correctly: the driver must not call speak() on the raw pair - it must construct the matching Animal subclass first.

Summary

Four principles, one class hierarchy - show you know all of them.

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