QUESTION 16What must be true of a class with one abstract method?O The class must also implement the Iterable interfaceAny derived class must implement the methodThe abstract method must have the static modifierO The method cannot specify a return valueQUESTION 17Suppose we wanted to design a set of classes for a veterinarian's office. Our Customer class looks like this:public class Customer {Pet [] pets;}Select all the statements that are trueOnce the size of the pets array has been set, it cannot be changedBecause we're using an array, all pets must be the sameA customer must have at least one petWe also need to declare a Pet classQUESTION 18What is the proper use of an enumeration?To define a set of ordered valuesTo enforce the use of the Comparable interfaceO To define, or enumerate, the values returned by a Random object generatorO To define the classes in an inheritance hierarchy

16) The abstract method must have the static modifier 17) Because we're using an array, all pets…

UESTION 16 What must be true of a class with one abstract method? O The class must also implement the Iterable interface Any derived class must implement the method The abstract method must have the static modifier O The method cannot specify a return value

UESTION 16 What must be true of a class with one abstract method? O The class must also implement the Iterable interface Any derived class must implement the method The abstract method must have the static modifier O The method cannot specify a return value

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 17RQ

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