* See attatched photoSuppose we have the following class: class C { /* ... */ public: int foo (); int bar (); }; Also suppose that this class is only available in compiled form, i.e., that it cannot be modified. Now we want to add an alternative implentation that only has a method foo() but that does not have a method bar() and does not inherit the data members from class C. I.e., this new class D would have the structure class D /* ... */ { public: int foo (); }; but it cannot inherit from class C. Suppose we want to maintain a list of objects that can be from either classes C or D. Explain how you can design this list data structure, traverse the list, and call foo() on each element, such that the appropriate method C::foo() or D::foo() is executed depending on the type of the object. Do not use either if-statements or structural subtyping. Hint: There are at least three possible solutions; each one requires you to define two or more classes in addition to the list class. Suppose we have the following class:class C { /**/ public: int foo ();int bar (); };..Also suppose that this class is only available in compiled form, i.e., that it cannot be modified.Now we want to add an alternative implentation that only has a method foo() but that doesnot have a method bar () and does not inherit the data members from class C. I.e., this newclass D would have the structureclass D /**/ { public: int foo (); };...but it cannot inherit from class C.Suppose we want to maintain a list of objects that can be from either classes C or D. Explainhow you can design this list data structure, traverse the list, and call foo() on each element,such that the appropriate method C: :foo () or D: :foo() is executed depending on the typeof the object. Do not use either if-statements or structural subtyping. Hint: There are at leastthree possible solutions; each one requires you to define two or more classes in addition to thelist class.

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Answered: Suppose we have the following class:…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Suppose we have the following class: class C { /* ... */ public: int foo (); int bar (); }; Also suppose that this class is only available in compiled form, i.e., that it cannot be modified. Now we want to add an alternative implentation that only has a method foo() but that does not have a method bar() and does not inherit the data members from class C. I.e., this new class D would have the structure class D /* ... */ { public: int foo (); }; but it cannot inherit from class C. Suppose we want to maintain a list of objects that can be from either classes C or D. Explain how you can design this list data structure, traverse the list, and call foo() on each element, such that the appropriate method C::foo() or D::foo() is executed depending on the type of the object. Do not use either if-statements or structural subtyping. Hint: There are at least three possible solutions; each one requires you to define two or more classes in addition to the list class.