> didn't have deep enough experience with "object oriented programming". What does that even mean? This could mean two things. "You aren't knowledgeable about

> didn't have deep enough experience with "object oriented programming". What does that even mean? This could mean two things. "You aren't knowledgeable about OOP" or "you couldn't show us that you are knowledgeable in OOP". If it isn't the former, maybe it's the latter? Maybe the real+underlying feedback is that you couldn't convey your breadth of knowledge in your interview?