Solved

Assigning a Derived Class Reference to a Base Class Variable

Question 62

Multiple Choice

Assigning a derived class reference to a base class variable is safe:


A) because the derived class has an object of its base class.
B) because the derived class is an object of its base class.
C) only when the base class is abstract.
D) only when the base class is concrete.

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q22: Polymorphism enables you to:<br>A) program in the

Q52: By convention,the name for a Car interface

Q53: An interface reference may invoke only the

Q54: A class that implements an interface may

Q55: Which statement best describes the relationship between

Q57: Polymorphism allows the addition of classes providing

Q58: Polymorphism specifically enables the creation of programs

Q59: An abstract class cannot have instance data

Q60: Which of the following characteristics could be

Q61: When used correctly,polymorphism will never require changes