Abstract precautions

Abstract methods require that subclasses be overridden after inheritance. So what keywords can’t the abstract keyword be used with?The following keywords, in the abstract class. It is possible to use it, but it is meaningless.

    private: A subclass cannot override an abstract after it has been privatized. Static: Static, taking precedence over an object. Abstract methods require subclass overriding, and static methods cannot be overridden, so the two are contradictory. Final: Modified by final, the abstract cannot be rewritten against the abstract.


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