Object-oriented design interview questions with solutions

Common object-oriented design interview questions with sample discussions, code, and diagrams.

Solutions linked to content in the solutions/ folder.

Note: This section is under development

Question
Design a hash mapSolution
Design a least recently used cacheSolution
Design a call centerSolution
Design a deck of cardsSolution
Design a parking lotSolution
Design a chat serverSolution
Design a circular arrayContribute
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