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// Subject: Inheritance exercise.
//
//***********************************************************************
#include <iostream>
#include <string>
#include <conio.h>
using namespace std;
class Pet
{
private:
char name[20];
int age;
double weight;
public:
Pet();// default constructor
Pet(char[20], int, double); // argument constructor
char getName()const; // read the name
int getAge()const; // read the age
double getWeight()const; // read weight
void setName(char[20]);// set the name
void setAge(int); // set the age
void setWeight(double); // set the weight
string getLifespan();// return a string
};
///////////////////////////////////////////////////////////////////////////////
// Class Derived Dog
class Dog: public Pet
{
private:
char breed[30];
public:
Dog();//:Pet(){} // default constroctur
Dog(char n[20], int a, double w, char b[30]):Pet(n, a, w){}// argument constructor
char getBreed()const; // read the bread type
void setBreed(char[30]); // set the breed of the dog
string getLifespan(); // return a string
};
///////////////////////////////////////////////////////////////////////////////
// Class Derived Rock
class Rock : public Pet
{
public:
Rock():Pet(){}
Rock(char n[20],int a, double w): Pet(n, a, w){}
string getLifespan()// return string
{
string s;
s = "Thousands of years";
return s;
}
};
///////////////////////////////////////////////////////////////////////////////
// The Class Pet declerations
Pet::Pet()
{
name[0] = '\0';
age = 0;
weight = 0.0;
}
Pet::Pet (char n[20], int a, double w)
{
name[20] = n[20];
age = a;
weight = w;
}
char Pet::getName()const
{
return name[20];
}
int Pet::getAge()const
{
return age;
}
double Pet::getWeight()const
{
return weight;
}
void Pet::setName(char n[20])
{
name[20] = n[20];
}
void Pet::setAge(int a)
{
age = a;
}
void Pet::setWeight(double w)
{
weight = w;
}
string Pet::getLifespan()
{
string s;
s = "unknown lifespan";
return s;
}
///////////////////////////////////////////////////////////////////////////////
// The Class Dog Declarations
Dog::Dog()
{
Pet();
breed[0] ='\0' ;
}
char Dog::getBreed() const
{
return breed[30];
}
void Dog::setBreed(char b[30])
{
breed[30] = b[30];
}
string Dog::getLifespan()
{
string s1, s2;
double w;
s1 = "The lifespan is under 7 years.";
s2 = "The lifespan is 13 years.";
w = Pet::getWeight();
Pet::getLifespan();
if (w > 100)
{
return s1;
}
else if (w < 100)
return s2;
}
int main()
{
Dog d; // object derived Dog
Rock r;// object derived Rock
string s; // to get the string from getLifespan() and store it.
char n[20] = "Sparky";// used on the base class Pet for name
int a = 1;// used on the base class Pet for age
double w = 17.20;// used on the base class Pet for weight
char b[30] = "Bichon-Puddle";// used on the derived class Dog for breed
cout <<"The Derived Dog output: " << endl;
d.setName(n); // set the name at the class Pet
d.setAge(a); // set the age at class Pet
d.setWeight(w);// set the weight at class Pet
d.setBreed(b); // set the breed at derived class Dog
cout <<"Name : " << d.getName(); cout << endl;
cout <<"Age : " << d.getAge(); cout << endl;
cout <<"Weight: " << d.getWeight();cout << endl;
cout <<"Breed : " << d.getBreed(); cout << endl;
cout << endl;
cout << endl;
cout <<"Derived Dog getLifespan() = ";
s = d.getLifespan();
cout << s << endl;
cout <<"\n\nThe Derived Rock output: " << endl;
r.setName(n);
r.setAge(a);
r.setWeight(w);
cout << endl;
cout <<"Name : " << r.getName(); cout << endl;
cout <<"Age : " << r.getAge(); cout << endl;
cout <<"Weight: " << r.getWeight();cout << endl;
cout << endl;
cout << endl;
cout <<"Derived Rock getLifespan() = ";
s = r.getLifespan();
cout << s << endl << endl;
return 0;
}
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