Consider the Speaker interface shown below: public interface Speaker { public void speak(); } For this problem, you will create 2 classes Human and Dog, both of which will implement the Speaker interface. The classes will not contain any properties; they will only implement the speak method, as dictated by the Speaker interface. The speak method will simply print a message in the "native language" of that speaker: For a Human, the speak method will print "Hello!" For a Dog, the speak method will print "Bark!"

Consider the Speaker interface shown below: public interface Speaker { public void speak(); } For this problem, you will create 2 classes Human and Dog, both of which will implement the Speaker interface. The classes will not contain any properties; they will only implement the speak method, as dictated by the Speaker interface. The speak method will simply print a message in the "native language" of that speaker: For a Human, the speak method will print "Hello!" For a Dog, the speak method will print "Bark!"

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 20RQ

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The interface Speaker is describe below. public interface Speaker{ public void speak(); public void announce(String str); } Create classes Dog and Philosopher implementing the Speaker interface. (The code for the general overview of the classes are provided you just need to fill the method and class headers and their code) and then create a driver class showing the abilities of interface, these tests are includes the ability of creating an object of Dog and Philosopher with interface reference, testing their polymorphic ability with invoking the methods of interface. and showing how we can use a method of child class of interface (Pontificate for the case of philosopher) using casting. i will include the templates below which you will use to answer the question. you will just need to input the missing codes in the required spaces. //******************************************************************** // SpeakerTest.java Author: Lewis/Loftus // // Solution to Programming Project 10.3…
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