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TCS NQT Technical and Managerial Round Interview Questions

Technical Discussion :: C++

2. What is virtual class and friend class?

Answer:

Friend classes are used when two or more classes are designed to work together and need access to each others implementation in ways that the rest of the world shouldn’t be allowed to have. In other words, they help keep private things private. For instance, it may be desirable for class Database Cursor to have more privilege to the internals of class Database than main () has.

Asked In :: TCS iGate

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