An abstract method serves as a placeholder for a method that must be defined in all derived classes.
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Q16: An abstract method cannot be modified by:
A)public
B)protected
C)private
D)none
Q17: A class with no abstract methods is
Q18: Assigning an object of an ancestor class
Q19: A method marked as final means the
Q20: Java allows an instance of an abstract
Q22: Draw an inheritance hierarchy to represent a
Q23: Describe the limitations of the copy constructor.
Q24: Downcasting should be used only in situations
Q25: What is wrong with the following method
Q26: The method clone has one parameter and
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