Program Of Complex number

A program in C++ to create Class called complex and implement addition and subtraction of complex numbers by overloading the functions add and subtract which returns the complex number. Also overload the operator “<<” to display a complex number.

#include<iostream.h>

#include<conio.h>

class Complex

{private:int real;

            int imag;

 public:void input();

            void add(Complex,Complex);

            void add(int);

            void sub(Complex,Complex);

            void sub(int);

            void display();

};

void main()

{clrscr();

 Complex c1,c2,c3;

 c1.input();

 c1.display();

 c2.input();

 c2.display();

 cout<<"\n\nBEFORE ADDING THE CONSTANT===>\n";

 c3.add(c1,c2);

 c3.display();

 cout<<"\n\nAFTER ADDING THE CONSTANT===>\n";

 c3.add(10);

 c3.display();

 getch();

 c1.input();

 c1.display();

 cout<<"BEFORE SUBSTRACTING THE CONSTANT\n";

 c3.sub(c1,c2);

 c3.display();

 cout<<"AFTER SUBSTRACTING THE CONSTANT\n";

 c2.input();

 c2.display();

 c3.sub(10);

 c3.display();

 getch();

}

void Complex::input()

{cout<<"\n\nENTER THE REAL NUMBERS\t";

 cin>>real;

 cout<<"\nENTER THE IMAGINARY NUMBERS\t";

 cin>>imag;

}

void Complex::add(Complex S,Complex R)

{real=S.real+R.real;

 imag=S.imag+R.imag;

}

void Complex::add(int n)

{real=real+n;

}

void Complex::sub(Complex S,Complex R)

{real=S.real-R.real;

 imag=S.imag-R.imag;

}

void Complex::sub(int n)

{real=real-n;

}

void Complex::display()

{cout<<"\n\nTHE REAL NUMBER IS "<<real;

 cout<<"\nTHE IMAGINARY NUMBER IS "<<imag;

 cout<<"\nTHE COMPLEX NUMBER IS "<<real<<"+"<<imag<<"j";

}