C++Class

#include <string>
#include <fstream>

using namespace std;

class Animal{

    //Attributes : height weitgh variablees
    //Capabilites : Run Eat function / methods

    private:
        int height;
        int weight;
        string name;


        static int numOfAnimals;

    public:
        int getHeigth(){ return heigth; }
        int getWeigth(){ return weight; }
        string getName(){ return name; }

        void setHeigth(int cm) { height = cm;}
        void setWeigth(int kg) { weight= kg;}
        void setName(string animalName) { name = animalName;}

        void setAll(int, int, string)

        //EXAMPLE OVERLOAD
        Animal(int, int, string);

        ~Animal(); //dESTRUCTOR

        Animal(); //Another constructor


        static int getNumOfAnimals() { return numOfAnimals; }

        void toString();

};

int Animal::numOfAnimals = 0;

void Animal::setAll(int height, int weight, string name){

    this -> height = height;
    this -> weight = weight;
    this -> height = height;
    Animal::numOfAnimals++;

}

//Do the same thing from above
Animal::Animal(int height, int weight, string name)
{

    this -> height = height;
    this -> weight = weight;
    this -> name = name;
    Animal::numOfAnimals++;
}

//Desconstructor

Animal::~Animal()
{

    cout << "Animal" << this -> name << "Destroyed" << endl;
}

//OVERLOAD
Animal::Animal()
{
    Animal::numOfAnimals++;
}

void Animal::toString(){
    cout << this -> name << this -> height <<
        "cms tall and " << this -> weight << "kgs in weight" << endl;
}

class Dog : public Animal{

private:
    string sound = "Woof";

public:
    void getSound(){ cout << sound << endl; }

    Dog(int, int, string, string);

    Dog() : Animal(){};

    void toString();

};

Dog::Dog(int height, int weight, string name, string bark) :
Animal(height, weightm name){
    this -> sound = bark;
}

void Dog::toString(){

    cout << this -> getName() << "is" << this -> getHeigth() << "cms tall and " << this -> getWeigth() << "kgs in weight and says " << this -> sound << endl;

}

int main(){

    Animal fred;

    fred.setHeigth(33);
    fred.setWeigth(10);
    fred.setName("Fred");

    cout << fred.getName() << " is " << fred.getHeigth() <<
        "cms tall and" << fred.getWeigth() << "kgs n weight" << endl;

    Animal tom(36, 15, "Tom");


    cout << tom.getName() << " is " << tom.getHeigth() <<
        "cms tall and" << tom.getWeigth() << "kgs n weight" << endl;

    Dog spot(38, 16, "Spot", "Woof");

    cout << "Number of Animals << Animal::getNumOfAnimals() << endl;

    spot.getSound();

    tom.toString();

    //Super class
    spot.Animal::toString();

    return 0;

}