LLD - Design — Parking Lot System
You want to design a system where each parking spot can only hold one vehicle at a time. Which class relationship best models this?
You want to design a system where each parking spot can only hold one vehicle at a time. Which class relationship best models this?
hard📝 Trade-off Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand one-to-one relationship
Each spot holds exactly one vehicle at a time.Step 2: Model relationship
Spot should have a reference to one Vehicle to represent occupancy.Final Answer:
Spot has a reference to one Vehicle -> Option BQuick Check:
One spot holds one vehicle = A [OK]
Quick Trick: Spot points to one vehicle to show occupancy [OK]
Common Mistakes:
MISTAKES- Assigning multiple spots to one vehicle
- Using inheritance incorrectly
- ParkingLot holding vehicles directly without spots
Master "Design — Parking Lot System" in LLD
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore LLD Quizzes