Interview Q&A / Object-Oriented Programming

INTERVIEW Q&A · 69 QUESTIONS

Object-Oriented Programming interview questions

The four pillars, interfaces, abstract classes and design basics.

  1. In the Dependency Inversion Principle, who should own the interface: the high-level or the low-level module?

    The high-level module. It declares the interface in terms of what it needs, and low-level modules implement it. That is what inverts the dependency direction.

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