Make sure you know the difference between an abstract class and an interface and constructors.
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A: The answer to the question is given below:
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Make sure you know the difference between an abstract class and an interface and constructors.
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- Explain the difference between an interface and an abstract class.In what scenarios would you choose to use an abstract class over an interface, and vice versa?Abstract classes and interfaces can both be used to specify common behavior of objects.How do you decide whether to use an interface or an abstract class? Explain youranswer.
- Write an abstract class, it can be anything well defined from the very basics.When should one use an abstract class, when should one use an interface, and when should one use both?Abstract classes and interfaces may be used interchangeably to specify the behavior of objects.How do you know whether you need an interface or an abstract class?
- What is an abstract class? Choose only one option.(a) An object(b) A class with no methods.(c) A class with no concrete subclasses.(d) A class with at least one undefined message.(e) An interface.Justify your inclination toward using interfaces rather than abstract classes.Does the usage of interfaces as opposed to abstract classes have any effect on the performance of the program?
