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In my Infosys interview back in early 2022, the one standout question they asked during the technical round was: "Explain how you would design a parking lot system using object-oriented principles, including classes for vehicles, parking spots, and levels." It tested core OOP concepts like inheritance, polymorphism, and encapsulation, and I walked them through a solution using Java with enums for vehicle types and a multilevel parking structure. This was a classic problem they favored for freshers at the time.
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System Engineer

Interviewed at Infosys

3.6★
Mar 2, 2026

In my Infosys interview back in early 2022, the one standout question they asked during the technical round was: "Explain how you would design a parking lot system using object-oriented principles, including classes for vehicles, parking spots, and levels." It tested core OOP concepts like inheritance, polymorphism, and encapsulation, and I walked them through a solution using Java with enums for vehicle types and a multilevel parking structure. This was a classic problem they favored for freshers at the time.

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