SE- OOP Practical Lab -Implement a class Complex which represents the Complex Number data type.

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Implement a class Complex which represents the Complex Number data type.
Implement the following operations:
 1. Constructor (including a default constructor which creates the complex number 0+0i).
 2. Overloaded operator+ to add two complex numbers.
 3. Overloaded operator* to multiply two complex numbers.
 4. Overloaded << and >> to print and read Complex Numbers.

Solution:

#include<iostream>
using namespace std;
class complex
{
float x;
float y;
public:
 complex()
{
x=0;
y=0;
}
complex operator+(complex);
complex operator*(complex);
friend istream &operator >>(istream &input,complex &t)
{
cout<<"Enter the real part";
input>>t.x;
cout<<"Enter the imaginary part";
input>>t.y;
}
friend ostream &operator <<(ostream &output,complex &t)
{
output<<t.x<<"+"<<t.y<<"i\n";
}
};
complex complex::operator+(complex c)
{
complex temp;
temp.x=x+c.x;
temp.y=y+c.y;
return(temp);
}
complex complex::operator*(complex c)
{
complex temp2;
temp2.x=(x*c.x)-(y*c.y);
temp2.y=(y*c.x)+(x*c.y);
return (temp2);
}
int main()
{
complex c1,c2,c3,c4;
 cout<<"Default constructor value=\n";
 cout<<c1;
cout<<"\nEnter the 1st number\n";
cin>>c1;
cout<<"\nEnter the 2nd number\n";
cin>>c2;
c3=c1+c2;
c4=c1*c2;
cout<<"\nThe first number is ";
cout<<c1;
cout<<"\nThe second number is ";
cout<<c2;
cout<<"\nThe addition is ";
cout<<c3;
cout<<"\nThe multiplication is ";
cout<<c4;
return 0;
}
/*
student@student-sb:~$ ./a.out
Default constructor value=
0+0i
Enter the 1st number
Enter the real part2
Enter the imaginary part4
Enter the 2nd number
Enter the real part4
Enter the imaginary part8
The first number is 2+4i
The second number is 4+8i
The addition is 6+12i
The multiplication is -24+32i
student@student-sb:~$ */

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