The following menu driven C++ program uses operator overloading to to perform Addition,Subtraction,Multiplication and Division of two complex numbers.Here Operators +,-,* and / are overloaded to perform the required operations with the desired objects.

eg:a*b in the terms of overloading means is to perform the '*' Operation associated with object a on object b.

The Complete Source Code is given below.If you have any Queries Just Comment on the Post.

eg:a*b in the terms of overloading means is to perform the '*' Operation associated with object a on object b.

The Complete Source Code is given below.If you have any Queries Just Comment on the Post.

```
#include<iostream.h>
#include<conio.h>
#include<string.h>
#include<stdio.h>
class complex
{
int i,r;
public:
void read()
{
cout<<"\nEnter Real Part:";
cin>>r;
cout<<"Enter Imaginary Part:";
cin>>i;
}
void display()
{
cout<<"\n= "<<r<<"+"<<i<<"i";
}
complex operator+(complex a2)
{
complex a;
a.r=r+a2.r;
a.i=i+a2.i;
return a;
}
complex operator-(complex a2)
{
complex a;
a.r=r-a2.r;
a.i=i-a2.i;
return a;
}
complex operator*(complex a2)
{
complex a;
a.r=(r*a2.r)-(i*a2.i);
a.i=(r*a2.i)+(i*a2.r);
return a;
}
complex operator/(complex a2)
{
complex a;
a.r=((r*a2.r)+(i*a2.i))/((a2.r*a2.r)+(a2.i*a2.i));
a.i=((i*a2.r)-(r*a2.i))/((a2.r*a2.r)+(a2.i*a2.i));
return a;
}
};
void main()
{
int ch;
clrscr();
complex a,b,c;
do
{
cout<<"\n1.Addition 2.Substraction";
cout<<" 3.Mulitplication 4.Division 5.Exit\n";
cout<<"\nEnter the choice :";
cin>>ch;
switch(ch)
{
case 1:
cout<<"\nEnter The First Complex Number:";
a.read();
a.display();
cout<<"\nEnter The Second Complex Number:";
b.read();
b.display();
c=a+b;
c.display();
break;
case 2:
cout<<"\nEnter The First Complex Number:";
a.read();
a.display();
cout<<"\nEnter The Second Complex Number:";
b.read();
b.display();
c=b-a;
c.display();
break;
case 3:
cout<<"\nEnter The First Complex Number:";
a.read();
a.display();
cout<<"\nEnter The Second Complex Number:";
b.read();
b.display();
c=a*b;
c.display();
break;
case 4:
cout<<"\nEnter The First Complex Number:";
a.read();
a.display();
cout<<"\nEnter The Second Complex Number:";
b.read();
b.display();
c=a/b;
c.display();
break;
}
}while(ch!=5);
getch();
}
```

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