constructor_initialization_inheritance

#include <iostream>
using namespace std;
 class alpha
    {
    int x;
    public:
    alpha(int i)
        {x=i;
        cout <<"alpha initialised"<<endl;
        }
        void show_x()
        {cout<<"x="<<x<<endl;}
    };

class beta
    {
    float y;
    public:
    beta(float j)
        {y=j;
        cout <<"beta initialised"<<endl;
        }
        void show_y()
        {cout<<"y="<<y<<endl;}
    };

class gamma:public beta,public alpha
    {
        int m,n;
        public:
        gamma(int a, float b, int c,int d):alpha(a),beta(b)
            {
                m=c;
                n=d;
                cout <<"Gamma initialised"<<endl;
            }
    void show_mn()
        {
            cout<<"m="<<m<<endl;
            cout<<"n="<<n<<endl;
        }
    };

int main()
    {
        gamma g(5,10.75,20,30);
        g.show_x();
        g.show_y();
        g.show_mn();
    }