What are abstract methods? Describe the circumstances in which an abstract method would be appropriate.
What will be an ideal response?
An abstract method is one with keyword abstract in its declaration. Abstract methods
do not provide implementations. Each concrete derived class of an abstract base
class must provide concrete implementations of the base class’s abstract methods. An
abstract method is appropriate when it does not make sense to provide an implementation
for a method in a base class (i.e., some additional derived-class-specific knowledge
is required to implement the method in a meaningful manner).
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