ProgrammingDuniya

 #include<iostream> using namespace std; class alpha  { int x ; public: alpha( int i )  //constructor  { x = i ; cout<< "alpha initialized\n" ; } void showx () { cout<< "x=" <<x<<endl ; } }; class beta { float y ; public: beta ( float b ) { y = b ; cout<< "Beta initialized\n" ; } void showy () { cout<< "y=" <<y<<endl ; } }; class gamma :public alpha, public beta { int m,n ; public: gamma (int a, float b, int c, int d ): alpha ( a ), beta ( b ) { m = c ; n = d ; cout<< "Gamma initialized\n" ; } void showmn () { cout<< "M=" <<m<<endl ; cout<< "N=" <<n<<endl ; } }; int main () { gamma g ( 5,30.3,23,12 ); cout<< "\n" ; g.showx (); g.show y (); g.showmn (); } output: alpha initialized Beta ...

 Program for Constructor in C++: #include<iostream> using namespace std; class alpha  { int x; public: alpha(int i)  //constructor  { x=i; cout<<"alpha initialized\n"; } void showx() { cout<<"x="<<x<<endl; } }; class beta { float y; public: beta(float b) { y=b; cout<<"Beta initialized\n"; } void showy() { cout<<"y="<<y<<endl; } }; class gamma:public alpha,public beta { int m,n; public: gamma(int a,float b,int c,int d):alpha(a),beta(b) { m=c; n=d; cout<<"Gamma initialized\n"; } void showmn() { cout<<"M="<<m<<endl; cout<<"N="<<n<<endl; } }; int main() { gamma g(5,30.3,23,12); cout<<"\n"; g.showx(); g.showy(); g.showmn(); } Output: alpha initialized Beta initialized Gamma initialized x=5 y=30...