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Grokking the Low Level Design Interview Using OOD Principles

Key Insights and Tips: Designing a Parking Lot

Explore effective strategies for designing a scalable parking lot system. Learn to avoid common mistakes such as ignoring multiple entry points, rigid payment methods, and monolithic classes. Understand how to model flexible spot allocation and ticket tracking. This lesson also includes a quiz and related case studies to deepen your grasp of object-oriented design principles in resource management scenarios.

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You’ve now completed the parking lot case study, and this lesson builds on that foundation by addressing common design pitfalls and sharing effective interview techniques. To help reinforce your understanding, a short quiz and a selection of related case studies are included to further strengthen your grasp of object-oriented design concepts.

Common mistakes

Avoiding the following common mistakes will help you develop a more efficient and scalable parking lot system:

  • Ignoring multiple entry and exit points: Failing to account for multiple entrances and exits in the initial design. Your ParkingLot class should manage collections of Entrance ...