Object-Oriented Programming Principles | Dataford Interview Questions

What are the key principles of object-oriented programming?

Demonstrate the principles by implementing shape classes that calculate area through a shared abstract interface. Define calculate_total_area(shapes), accepting a list of shape dictionaries and returning the total area rounded to two decimal places.

Input dictionaries use {"type": "rectangle", "width": number, "height": number} or {"type": "circle", "radius": number}. The implementation should use encapsulated state, inheritance, abstraction, and polymorphic method calls.

Constraints

0 <= len(shapes) <= 1000
Each dimension is a positive number
Each shape type is either rectangle or circle
Return the result rounded to two decimal places

Function Signature

def calculate_total_area(shapes):

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Problem

What are the key principles of object-oriented programming?

Constraints

0 <= len(shapes) <= 1000
Each dimension is a positive number
Each shape type is either rectangle or circle
Return the result rounded to two decimal places

Function Signature

def calculate_total_area(shapes):

Your question is Object-Oriented Programming Principles. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.