Complex_Numbers_Lab_2

Complex Number Arithmetic (Lab 2)

Write a Java class Complex for dealing with complex number. Your class must have the following features:

Instance variables :

• realPart - for the real part of type double
• imaginaryPart - for imaginary part of type double.

Constructor:

• public Complex (): A default constructor, it should initialize the number to 0, 0)
• public Complex (double realPart, double imaginaryPart): A constructor with parameters, it creates the complex object by setting the two fields to the passed values.

Instance methods:

• public Complex add (Complex otherNumber): This method will find the sum of the current complex number and the passed complex number.  The methods returns a new Complex number which is the sum of the two.
• public Complex subtract (Complex otherNumber): This method will find the difference of the current complex number and the passed complex number.  The methods returns a new Complex number which is the difference of the two.
• public Complex multiply (Complex otherNumber): This method will find the product of the current complex number and the passed complex number.  The methods returns a new Complex number which is the product of the two.
• public Complex divide (Complex otherNumber): This method will find the ... of the current complex number and the passed complex number.  The methods returns a new Complex number which is the ... of the two.
• public void setRealPart (double realPart): Used to set the real part of this complex number.
• public void setImaginaryPart (double realPart): Used to set the imaginary part of this complex number.
• public double getRealPart(): This method returns the real part of the complex number
• public double getImaginaryPart(): This method returns the imaginary part of the complex number
• public String toString(): This method allows the complex number to be easily printed out to the screen

Write a separate class ComplexDemo with a main() method and test the Complex class methods.