Reasons:

There are two important reasons to make “DividendStock” as a separate subclass.

If all stocks pay dividends then it is justifiable for every object of “Stock” to carry a dividends field and a “payDividend()” method but not all stocks pay dividends...

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Chapter 9.4, Problem 20SCP

Chapter 9.5, Problem 22SCP

Chapter 9 Solutions

Building Java Programs: A Back To Basics Approach (5th Edition)

Ch. 9.1 - Prob. 1SCP Ch. 9.1 - Prob. 2SCP Ch. 9.1 - Prob. 3SCP Ch. 9.2 - Prob. 4SCP Ch. 9.2 - Prob. 5SCP Ch. 9.2 - Write a constructor for the UndergraduateStudent...Ch. 9.2 - Prob. 7SCP Ch. 9.2 - Prob. 8SCP Ch. 9.2 - Suppose the Truck code from the previous problem...Ch. 9.3 - Consider the following classes: public class...

Ch. 9.3 - Using the A, B, C, and D classes from this...Ch. 9.3 - Assume that the following classes have been...Ch. 9.3 - Using the classes from the previous problem,...Ch. 9.3 - Prob. 14SCP Ch. 9.3 - Prob. 15SCP Ch. 9.3 - Prob. 16SCP Ch. 9.3 - Prob. 17SCP Ch. 9.4 - What is the difference between an is-a and a has-a...Ch. 9.4 - Prob. 19SCP Ch. 9.4 - Prob. 20SCP Ch. 9.4 - Prob. 21SCP Ch. 9.5 - Prob. 22SCP Ch. 9.5 - Prob. 23SCP Ch. 9.5 - Prob. 24SCP Ch. 9.5 - Prob. 25SCP Ch. 9.5 - Prob. 26SCP Ch. 9.6 - What is an abstract class? How is an abstract...Ch. 9.6 - Prob. 28SCP Ch. 9.6 - Consider writing a program to be used to manage a...Ch. 9 - Prob. 1E Ch. 9 - Write a class Janitor to accompany the other law...Ch. 9 - Write a class HarvardLawyer to accompany the other...Ch. 9 - Write a class MonsterTruck that relates to the Car...Ch. 9 - Prob. 6E Ch. 9 - Prob. 9E Ch. 9 - FilteredAccount. A cash processing company has a...Ch. 9 - Add an equals method to the TimeSpan class...Ch. 9 - Add an equals method to the Cash class introduced...Ch. 9 - Write a class named Octagon whose objects...Ch. 9 - Write a class named Hexagon whose objects...Ch. 9 - Write a class named Dodecagon whose objects...Ch. 9 - Declare an interface called Incrementable which...

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