Dog类c++（练习题）

#include <iostream>

#include<cmath>

using namespace std;

class Dog{

        public:

        Dog();

        Dog(int a,double w):age(a),weight(w)

    {cout<<"Consyructor called"<<endl;}

        void setDog(int a,double w){

        age=a;

        weight=w;

        }

        int geta(){return age;}        

        double getw(){return weight;}                

        ~Dog()

        {cout<<"Destructor called."<<endl;}

        void display()

        {cout<<age<<endl<<weight<<endl;}

        private:

        int age;double weight;

        };

    Dog::Dog()

        {age=0;weight=0;}                

        int main()

        {

    Dog r(10,18.9);

        r.display();

        r.setDog(11,20);

        cout<<r.geta()<<endl<<r.getw()<<endl;

    return 0;

}