In software design, you should plan ahead the interface of a class hierarchy to make sure that all related concrete classes share a common interface. This can be achieved by using abstract classes>. An abstract class is one having at least one pure virtual member function, i.e., a non-implemented placeholder, which must be implemented by its derived class(es). Mind that instances of an abstract class cannot be created, since it


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When it comes to programming, a good mechanical keyboard can make all the difference. Naturally, you would want one of the best mechanical keyboards for programmers. But with so many