The class A serves as the parent, while the classes B and C are used to denote the subclasses. B and C share various features and methods with C; nevertheless, the implementations of some of the techniques shared by B and C are quite different from one another. Explain what kind of class A will be using logic; concrete, abstract, or interface?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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The class A serves as the parent, while the classes B and C are used to denote the subclasses. B and C share various features and methods with C; nevertheless, the implementations of some of the techniques shared by B and C are quite different from one another. Explain what kind of class A will be using logic; concrete, abstract, or interface?

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