A method that accepts a base class variable as a parameter cannot accept a derived class variable as a parameter.

Name: A method that accepts a base class variable as a parameter cannot accept a derived class variable as a parameter.
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A method that accepts a base class variable as a parameter can accept a derived class variable as a parameter as long as it is treated as a base class object. This is known as polymorphism and is one of the fundamental principles of object-oriented programming.

A Method That Accepts a Base Class Variable as a Parameter