Build two classes: Mammal and Dog, where Dog will be derived from Mammal. You ar

Question

Build two classes: Mammal and Dog, where Dog will be derived from Mammal. You are given the code for the Mammal class and are expected to build a Dog class (using Dog.h and Dog.cpp) in similar fashion, except that Dog should be derived from Mammal:

Mammal.h:

#include <iostream> using namespace std;

class Mammal {

public: Mammal();

~Mammal();
virtual void Move() const; virtual void Speak() const;

protected:
int move;

};

Mammal.cpp:

#include "Mammal.h"

Mammal::Mammal() : move(1) {

cout << "Mammal constructor..." << endl; }

Mammal::~Mammal() {

cout << "Mammal destructor..." << endl; }

void Mammal::Move() const {

cout << "Mammal moves " << move << " step!" << endl; }

void Mammal::Speak() const {

cout << "What does a mammal speak? Mammilian!" << endl; }

Explanation / Answer

The given derived class Dog code is given as below.Hope it will be an understandable code.Here it goes:

Dog.h
#include <iostream>

using namespace std;
class Dog:public Mammal {
public: Dog();
~Dog();
virtual void Move() const; virtual void Speak() const;

protected:

int move;
};


Dog.cpp:
#include "Dog.h"
Dog::Dog() : move(1) {
cout << "Dog constructor..." << endl; }
Mammal::~Dog() {
cout << "Dog destructor..." << endl; }
void Dog::Dog() const {
cout << "Dog moves " << move << " step!" << endl; }
void Dog::Speak() const {
cout << "What does a Dog speak? Doggian!" << endl; }

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