Which of the following code snippets correctly creates an immutable data structure in a low-level design context?

easy📝 Conceptual Q12 of 15

LLD - Advanced LLD Concepts

AUsing a constant object or final class with no setters.

BUsing a regular class with public fields that can be changed.

CUsing a mutable list that allows adding or removing items.

DUsing a global variable that can be updated anytime.

Step-by-Step Solution

Solution:

Step 1: Identify immutable structure traits
Immutable means no changes allowed after creation, so no setters or public mutable fields.
Step 2: Match code snippet to traits
Constant object or final class with no setters fits immutability.
Final Answer:
Using a constant object or final class with no setters. -> Option A
Quick Check:
Immutable = constant, no setters [OK]

Quick Trick: Immutable means no setters or public mutable fields [OK]

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