Consider the NRComplex class which represents a non-real complex number. In theclass given below, r represents real part, and i represents imaginary part. Forexample, if r is 3 and i is 7, it represents 3 + 7i. Because it represents a non-realcomplex number, the imaginary part must not be 0.public class NRComplex {private double r;private double i;// Your code will be inserted here Write a constructor that takes two doubles (for r and i). In case that i is null, theconstructor will throw an IllegalArgumentException exception with the messagei must be non-zero.Notice that the constructor throws an exception (a run-time error) that appeared in aProject 5. You do not need to understand in detail how exceptions works in Java foranswering this question.

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Write a constructor that takes two doubles (forr and i). In case that i is nulI, the constructor will throw an IllegalArgumentException exception with the message i must be non-zero.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Exception Handling Keywords

An exception is a situation or anomaly that occurs during the program execution which prevents the execution from continuing further. An exception is an unexpected behavior that can cause the program to stop abruptly.

Question

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

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.

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