Consider the NRComplex class which represents a non-real complex number. In the class given below, r represents real part, and i represents imaginary part. For example, if r is 3 and i is 7, it...

Extracted text: Consider the NRComplex class which represents a non-real complex number. In the class given below, r represents real part, and i represents imaginary part. For example, if r is 3 and i is 7, it represents 3 + 7i. Because it represents a non-real complex number, the imaginary part must not be 0. public class NRComplex { private double r; private double i; // Your code will be inserted here


Extracted text: Write a constructor that takes two doubles (for r and i). In case that i is null, the constructor will throw an IllegalArgumentException exception with the message i must be non-zero. Notice that the constructor throws an exception (a run-time error) that appeared in a Project 5. You do not need to understand in detail how exceptions works in Java for answering this question.