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You want to create a class that hides its internal data and only allows access through methods. Which OOP principle does this demonstrate?

hard📝 Application Q15 of 15
Python - Object-Oriented Programming Foundations
You want to create a class that hides its internal data and only allows access through methods. Which OOP principle does this demonstrate?
AInheritance
BEncapsulation
CPolymorphism
DAbstraction
Step-by-Step Solution
Solution:

  1. Step 1: Understand the principle of hiding data

    Hiding internal data and controlling access through methods is called Encapsulation.

  2. Step 2: Differentiate from other principles

    Inheritance is about reusing code, Polymorphism is about using methods in different ways, Abstraction is about hiding complexity but not necessarily data.

  3. Final Answer:

    Encapsulation -> Option B

  4. Quick Check:

    Data hiding = Encapsulation [OK]
Quick Trick: Data hiding means Encapsulation [OK]
Common Mistakes:
  • Confusing encapsulation with abstraction
  • Mixing inheritance with data hiding
  • Thinking polymorphism hides data

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