| 11. | A class containing a pure virtual function is called an " abstract class ".
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| 12. | Most interfaces and abstract classes in Java do not specify a public clone ( ) method.
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| 13. | A classic example would be the use of abstract classes to hide the actual method logic.
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| 14. | Instead, a generic CheckMe ( ) method is built into the element's abstract class.
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| 15. | The lower-level layers are created by inheritance / implementation of these abstract classes or interfaces.
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| 16. | New features in 2.0 included multiple inheritance, abstract classes, static member functions, boolean type.
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| 17. | It seems to me that what you're describing is an abstract class, a somewhat narrower concept.
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| 18. | A framework that uses the call super anti-pattern may provide the following abstract class ( in C # ):
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| 19. | Not all classes can be instantiated abstract classes cannot be instantiated, while classes that can be instantiated are called concrete classes.
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| 20. | In's code, the code in the abstract class is actually being called through a method defined in the concrete class.
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