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In a multi-level inheritance hierarchy, which access modifier allows a subclass in a different package to access a superclass field while still preserving encapsulation?

hard🚀 Application Q8 of Q15

OOP & Design Patterns - Encapsulation - Data Hiding, Getters/Setters & Access Modifiers

In a multi-level inheritance hierarchy, which access modifier allows a subclass in a different package to access a superclass field while still preserving encapsulation?

Aprivate

Bprotected

Cpublic

Ddefault (package-private)

Step-by-Step Solution

Solution:

Step 1: Recall access modifier rules
Protected allows subclass access even across packages, preserving encapsulation better than public.
Final Answer:
Option B -> Option B
Quick Check:
Protected grants subclass access beyond package [OK]

Quick Trick: Protected allows subclass access across packages [OK]

Common Mistakes:

MISTAKES

Choosing private which blocks subclass
Choosing public which is too open
Confusing default with protected

Trap Explanation:

PITFALL

Candidates confuse default/package-private with protected or overexpose with public.

Interviewer Note:

CONTEXT

Tests nuanced understanding of access modifiers in inheritance.

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