[Solved] Which of the following best describes an immutable object in system design? — Ans: An object whose state cannot be changed after it is created | LLD

LLD - Advanced LLD Concepts

Which of the following best describes an immutable object in system design?

AAn object whose state cannot be changed after it is created

BAn object that can be modified by any thread at any time

CAn object that automatically updates its state when accessed

DAn object that stores data in a temporary cache

Step-by-Step Solution

Solution:

Step 1: Define immutable object
An immutable object is one whose state cannot be changed once created.
Step 2: Eliminate incorrect options
Options A, C, and D describe mutable or unrelated behaviors.
Final Answer:
An object whose state cannot be changed after it is created -> Option A
Quick Check:
Immutable object = Unchangeable state [OK]

Quick Trick: Immutable means no changes allowed after creation [OK]

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