Python - Encapsulation and Data Protection
Which of the following is the correct way to define a private attribute named
age in a Python class?Which of the following is the correct way to define a private attribute named age in a Python class?
easy📝 Syntax Q12 of Q15
Step-by-Step Solution
Solution:
Step 1: Identify private attribute syntax
Private attributes start with exactly two underscores, like__age.Step 2: Check options
self.__age usesself.__age, which is correct. self.age is public, self._age is protected (single underscore), self.___age has three underscores which is invalid.Final Answer:
self.__age -> Option DQuick Check:
Private attribute = double underscore [OK]
Quick Trick: Private attribute = double underscore before name [OK]
Common Mistakes:
MISTAKES- Using single underscore instead of double
- Adding too many underscores
- Forgetting underscores
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