OOP & Design Patterns - Encapsulation - Data Hiding, Getters/Setters & Access Modifiers
Given a class with private fields and public getter/setter methods, which pattern best describes how external code interacts with the object's data?
Given a class with private fields and public getter/setter methods, which pattern best describes how external code interacts with the object's data?
easy🔍 Pattern Recognition Q2 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand encapsulation access
Private fields are accessed externally only through getters/setters to control and validate access.Final Answer:
Option A -> Option AQuick Check:
Encapsulation enforces method-based access, not direct field access [OK]
Quick Trick: Private fields require getters/setters for access [OK]
Common Mistakes:
MISTAKES- Assuming inheritance grants direct private field access
- Believing global variables can modify private fields
- Thinking direct field access is allowed externally
Trap Explanation:
PITFALL- Candidates confuse inheritance or global scope with encapsulation's controlled access.
Interviewer Note:
CONTEXT- Tests if candidate knows how encapsulation controls data access.
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