Complex number arithmetic operation-using c++(inheritance)

         Program for add and multiply complex numbers implemented using hierarchical inheritance and also using        

                                   constructor

#include<iostream.h>

#include<conio.h>

 

class A     //Base class

{

    public:

    double a,b;

    void getnumber()     // Member function

    {

           cout<<"\n\n\tEnter Number for complex number:::\n";

           cin>>a>>b;

           cout<<"\n\tComplex number is :::\t";

           if(b>0)

           cout<<a<<"+"<<b<<"i";

           else

           cout<<a<<b<<"i";

    }

};

 

class B : public A    // Derived class 1

{

    public:

    B(double a,double b,double c,double d) //parameterized constructor

    {

 

        if((b+d)>0)

        cout<<"\n\nAddition of complex number :::\t"<<(a+c)<<"+"<<(b+d)<<"i";

        else

        cout<<"\n\nAddition od complex number :::\t"<<(a+c)<<(b+d)<<"i";

 

    }

 

};

 

class C : public A   // Derived class 2

{

    public:

    C(double a,double b,double c,double d) //parameterized constructor

    {

 

        if(((a*d)*(b*c))>0)

    cout<<"\n\nMultiplication of complex number :::\t"<<((a*c)+((b*d)*(-1)))<<"+"<<(a*d)+(b*c)<<"i";

        else

    cout<<"\n\nMultiplication of complex number :::\t"<<((a*c)+((b*d)*(-1)))<<(a*d)+(b*c)<<"i";

 

    }

};

 

int main()

{

    clrscr();

    A a1;     // a1 is object of class A

    a1.getnumber();  // It call member function ( getnumber() ) of class A

    A a2;     // a2 is another object of class A

    cout<<"\n\n---------------------------------------------------";

    a2.getnumber(); // It call member function ( getnumber() ) of class A

    cout<<"\n\n---------------------------------------------------";

    B(a1.a,a1.b,a2.a,a2.b);  // It call class B constructor

    cout<<"\n\n---------------------------------------------------";

    C(a1.a,a1.b,a2.a,a2.b);  // It call class C constructor

    cout<<"\n\n---------------------------------------------------";

 

    getch();

}

/*

If 10+20i is complex number then

a1.a=10  and  a1.b=20

and another complex number for add and multiply is 30+40i then

a2.a=30  and  a2.b=40

*/