OOP and Core Concepts | Dataford Interview Questions

What is object-oriented programming, and what are the principles of object-oriented programming? What is the difference between a class and an object?

For the practical portion, implement a small object-oriented shape calculator. Define shape classes that encapsulate their dimensions and expose a common area() method, then return the area of each shape specification.

Use calculate_areas(shapes), where shapes is a list of dictionaries with either { "type": "rectangle", "width": w, "height": h } or { "type": "square", "side": s }. Return a list of numeric areas in the same order.

Constraints

1 <= len(shapes) <= 1000
Each shape type is either "rectangle" or "square"
Dimensions are integers from 0 through 10^6
Return one area for every input shape

Function Signature

def calculate_areas(shapes):

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

Problem

What is object-oriented programming, and what are the principles of object-oriented programming? What is the difference between a class and an object?

Constraints

1 <= len(shapes) <= 1000
Each shape type is either "rectangle" or "square"
Dimensions are integers from 0 through 10^6
Return one area for every input shape

Function Signature

def calculate_areas(shapes):

Your question is OOP and Core Concepts. 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.