Access of super class variable Program plan: Declare the header files and namespace. Create a class “A”, Declare the public member variable “x”. Create a class “B” that extends the class “A”, Declare the protected member variable “x”. Create a class “C” that extends the class “B”, Declare the public member variable “x”. Declare the method “setXinA()”. Define the method “setXinA()” of “C”, Set the value of “x” as “5”. Define the “main()” method, Create pointer object for “C”. Call the method “setXinA()” to set the value of “x”. Print the value of “x”. Return “0”.

Question

Q4. Consider the following two design alternatives. Walmart Walmart Store locartion 1 * capacity - Associate Name 1 id position Design Alternative "A" Store locartion 1 capacity Associate Name 1 * id position Design Alternative "B" a) Explain the semantic differences between the two designs, if any. b) Explain the differences in how each design alternative may be implemented in Java. c) which design alternative may require more storage requirement in your opinion, and why?

Answer 1

Question

Chapter 2, Problem 7C

Program Plan Intro

Access of super class variable

Program plan:

Declare the header files and namespace.

Create a class “A”,

Declare the public member variable “x”.

Create a class “B” that extends the class “A”,

Declare the protected member variable “x”.

Create a class “C” that extends the class “B”,

Declare the public member variable “x”.

Declare the method “setXinA()”.

Define the method “setXinA()” of “C”,

Set the value of “x” as “5”.

Define the “main()” method,

Create pointer object for “C”.

Call the method “setXinA()” to set the value of “x”.

Print the value of “x”.

Return “0”.

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