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Which of the following statements about abstract classes and interfaces is true? Abstract classes can have methods with code, but interfaces cannot. Abstract classes can
Which of the following statements about abstract classes and interfaces is true?
Abstract classes can have methods with code, but interfaces cannot.
Abstract classes can be instantiated, but interfaces cannot.
Abstract classes can declare abstract methods, but interfaces cannot.
Abstract classes can be extended, but interfaces cannot.
Abstract classes can exist in protected classes, but interface cannot.
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Fundamentals Of Database Systems
Authors: Ramez Elmasri, Sham Navathe
4th Edition
0321122267, 978-0321122261
