How would you design the Request class to handle both floor number and direction in a scalable elevator system?

hard📝 Trade-off Q8 of 15

LLD - Design — Elevator System

How would you design the Request class to handle both floor number and direction in a scalable elevator system?

AInclude attributes for floor number and direction, with methods to validate direction

BOnly store floor number; direction is irrelevant

CStore direction as a boolean without floor number

DUse a global variable for direction instead of class attribute

Step-by-Step Solution

Solution:

Step 1: Identify required data for Request
Request must know floor and direction to serve user properly.
Step 2: Design for scalability
Attributes for floor and direction with validation methods ensure correctness and future extension.
Final Answer:
Include attributes for floor number and direction, with methods to validate direction -> Option A
Quick Check:
Request needs floor and direction attributes [OK]

Quick Trick: Store both floor and direction in Request for clarity [OK]

Common Mistakes:

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