I had posted this before. But I am more on the right track. The places that I need help with have something saying like "need something here" or "need to fix the way it is displaying" I can't figure it out. I also am not sure if the multiplication portion of the methods is correct. I have been working on it for the past day. Please help me.

This is what I have:

```
#include <iomanip>
#include <iostream>
using namespace std;
// Class Definition
class Complex
{
public:
Complex(); //default constructor
Complex( int, int );
void display();
void displayComplex();
void setReal( int );
void setImaginary( int );
void setComplex( int, int );
int getReal();
int getImaginary();
void add( int, int );
void subtract( int, int );
void multiply( int, int );
void add( Complex );
void subtract( Complex );
void multiply( Complex );
bool isEqual( int, int );
bool isEqual( Complex );
private:
int real;
int imaginary;
};
int main()
{
Complex object1;
Complex object2(3,7);
Complex object3(4,-2);
Complex object4(8,0);
Complex object5;
cout << "The default constructor produces: \n";
object1.displayComplex();
cout << " or ";
object1.display();
cout << endl << endl << endl;
cout << "The constructor with values produces: \n";
object2.displayComplex();
cout << " or ";
object2.display();
cout << endl << endl;
object3.displayComplex();
cout << " or ";
object3.display();
cout << endl << endl << endl;
cout << "The getReal and getImaginary methods produces:" << endl << endl;
cout << "The real portion of d4 is " << object4.getReal() << endl;
cout << "The imaginary portion is " << object4.getImaginary() << endl << endl;
cout << "The real portion of d5 is " << object5.getReal() << endl;
cout << "The imaginary portion is " << object5.getImaginary()<< endl << endl << endl;
cout << "The add method produces:" << endl << endl;
cout << "The sum of ";
object2.displayComplex();
cout << " and ";
object3.displayComplex();
cout << " is ";
object2.add(object3);
cout << " or ";
// need something here
cout << endl << endl;
cout << "The sum of ";
object1.display();
cout << " and (15,3) is ";
object1.add(15,3);
cout << " or ";
//need something here
cout << endl << endl << endl;
cout << "The subtract method produces:" << endl << endl;
cout << "The difference of ";
object5.displayComplex();
cout << " minus ";
object3.displayComplex();
cout << " is ";
object5.subtract(object3);
cout << " or ";
//need something here
cout << endl << endl;
//Fix this one
cout << "The difference of ";
object1.add(6,4); // need to fix the way it is displaying -- should be in () without the i
cout << " minus (9) is ";
//need something here
cout << " or ";
//need something here
cout << endl << endl << endl;
cout << "The multiply method produces:" << endl << endl;
cout << "The product ";
object1.add(-3,4);
cout << " times ";
object3.displayComplex();
cout << " is ";
//need something here
cout << " or ";
// need something here
cout << endl << endl << "The product of ";
object1.add(7,-1); // need to fix the way it is displaying -- should be just (8) not (8, 0i)
cout << " times ";
object3.display();
cout << " is ";
// need something here
cout << " or ";
//need something here
cout << endl << endl << endl;
cout << "The isEqual method produces: " << endl << endl;
cout << "Comparing ";
object1.add(1,23);
cout << "and ";
object3.displayComplex();
//need something here
cout << endl;
cout << "Comparing ";
object1.add(-4,2);
cout << "and ";
object1.add(-4,2);
//need something here
cout << endl;
cout << "Comparing ";
object1.add(31,-17); // need to fix the way it is displaying -- should be in () without the i
cout << "and ";
object1.add(14,5); // need to fix the way it is displaying -- should be in () without the i
//need something here
cout << endl;
system("pause");
return 0;
}
// Methods
/************************************************************************
Constructor 1: Complex()
The first constructor for the Complex class is the default constructor and
takes no arguments. Its sole purpose is to create an object with both the
real and imaginary portions set to 1.
*************************************************************************/
Complex::Complex()
{
real=1;
imaginary=1;
}
/************************************************************************
Constructor 2: Complex()
The second constructor for the Complex class should take two integer
arguments that will be used to initialize the two data members. The
arguments passed to the constructor are: the real portion of the complex
number, and the imaginary portion of the complex number, respectively.
*************************************************************************/
Complex::Complex( int r, int i )
{
real=r;
imaginary=i;
}
/************************************************************************
void display()
This method will display the Complex object in the form (real, imaginary).
If the imaginary data member contains 0, then the Complex object should
display in the form (real).
*************************************************************************/
void Complex::display()
{
cout<<"("<<real<<","<<imaginary<<")"<<endl;
}
/************************************************************************
void displayComplex()
This method will display the Complex object in the form real + imaginary i.
If the imaginary data member contains a negative number, then the imaginary
portion of the complex number should be enclosed in parenthesis. For example:
real = 3, imaginary = 7 will display 3 + 7i
real = 4, imaginary = -2 will display 4 + (-2i)
*************************************************************************/
void Complex::displayComplex()
{
cout << real << "+" << imaginary << "i" << endl;
}
/************************************************************************
void setReal()
This method will use the passed in argument to initialize the real portion
of the Complex object.
*************************************************************************/
void Complex::setReal( int r )
{
real=r;
}
/************************************************************************
void setImaginary()
This method will use the passed in argument to initialize the imaginary
portion of the Complex object.
*************************************************************************/
void Complex::setImaginary( int im )
{
imaginary=im;
}
/************************************************************************
void setComplex()
This method will use the passed in arguments to initialize a Complex object.
The first argument is used to initialize the real data member, while the
second argument is used to initialize the imaginary data member.
*************************************************************************/
void Complex::setComplex( int r, int i )
{
real=r;
imaginary=i;
}
/************************************************************************
int getReal()
This method returns the real portion of the Complex object
*************************************************************************/
int Complex::getReal()
{
return real;
}
/************************************************************************
int getImaginary()
This method returns the imaginary portion of the Complex object.
*************************************************************************/
int Complex::getImaginary()
{
return imaginary;
}
/************************************************************************
Addition 1: void add()
Both of the add methods will add two Complex objects. This first version
has the complex number passed in as its separate real and imaginary parts.
*************************************************************************/
void Complex::add( int c, int d )
{
cout<<(real+c)<<"+"<<(imaginary+d)<< "i" <<endl;
}
/************************************************************************
Subtraction 1: void subtract()
Both of the subtract methods will subtract two Complex objects. This first
version has the complex number passed in as its separate real and imaginary
parts.
*************************************************************************/
void Complex::subtract( int c, int d )
{
cout<<(real-c)<<"+"<<(imaginary-d)<< "i" <<endl;
}
/************************************************************************
Multiplication 1: void multiply()
Both of the multiply methods will multiply two Complex objects. This
first version has the complex number passed in as its separate real and
imaginary parts.
*************************************************************************/
void Complex::multiply( int c, int d )
{
int newReal=(real*c-imaginary*d);
int newimg=(real*d+imaginary*c);
cout<<newReal<<"+"<<newimg<< "i" <<endl;
}
/************************************************************************
Addition 2: void add()
Both of the add methods will add two Complex objects. This second version
has the complex number passed in as a Complex object.
*************************************************************************/
void Complex::add( Complex obj )
{
cout<<(real+obj.real)<<"+"<<(imaginary+obj.imaginary)<< "i" <<endl;
}
/************************************************************************
Subtraction 2: void subtract()
Both of the subtract methods will subtract two Complex objects. This second
version has the complex number passed in as a Complex object.
*************************************************************************/
void Complex::subtract( Complex obj )
{
cout<<(real-obj.real)<<"+"<<(imaginary-obj.imaginary)<< "i" <<endl;
}
/************************************************************************
Multiplication 2: void multiply()
Both of the multiply methods will multiply two Complex objects. This
second version has the complex number passed in as a Complex object.
*************************************************************************/
void Complex::multiply( Complex obj )
{
int newReal=(real*obj.real-imaginary*obj.imaginary);
int newimg=(real*obj.imaginary+imaginary*obj.real);
cout<<newReal<<"+"<<newimg<<"i" << endl;
}
/************************************************************************
Equality 1: bool isEqual()
Both of the isEqual methods will test if two Complex objects are equal.
This first version has the complex number passed in as its separate real
and imaginary parts. Complex numbers are equal if and only if the real
number portions are equal and the imaginary portions are equal.
*************************************************************************/
bool Complex::isEqual( int a, int b )
{
if(real==a&&imaginary==b)
return true;
else
false;
}
/************************************************************************
Equality 2: bool isEqual()
Both of the isEqual methods will test if two Complex objects are equal.
This second version has the complex number passed in as a Complex object.
Complex numbers are equal if and only if the real number portions are
equal and the imaginary portions are equal.
*************************************************************************/
bool Complex::isEqual( Complex obj )
{
if(real==obj.real&&imaginary==obj.imaginary)
return true;
else
false;
}
```

This is what it should look like:

The default constructor produces:

1 + 1i or (1, 1)

The constructor with values produces:

3 + 7i or (3, 7)

4 + (-2i) or (4, -2)

The getReal and getImaginary methods produces:

The real portion of d4 is 8

The imaginary portion is 0

The real portion of d5 is 1

The imaginary portion is 1

The add method produces:

The sum of 3 + 7i and 4 + (-2i) is 7 + 5i or (7, 5)

The sum of (1, 1) and (15, 3) is (16, 4) or 16 + 4i

The subtract method produces:

The difference of 1 + 1i minus 4 + (-2i) is -3 + 3i or (-3, 3)

The difference of (7, 5) minus (9) is (-2, 5) or -2 + 5i

The multiply method produces:

The product -2 + 5i times 4 + (-2i) is 2 + 24i or (2, 24)

The product of (8) times (4, -2) is (32, -16) or 32 + (-16i)

The isEqual method produces:

Comparing 2 + 24i and 4 + (-2i)

== False

!= True

Comparing -3 + 3i and -3 + 3i

== True

!= False

Comparing (32, -16) and (15, 6)

== False

!= True

*Edited 5 Years Ago by jmcginny5*: n/a