Overview

The RomanNumeral Java includes a class for converting Roman numerals to integers. The source code includes the RomanNumeral class with its method for conversion, and a RomanNumeralTest class for testing the conversion method. The project utilizes a simple testing framework with annotations to denote test methods.

Features

• RomanNumeral Class: This class contains a method romanToInt(String s) which converts a string representing a Roman numeral into its integer value.
• Immutable Map: The class uses an immutable map to store the Roman numeral characters and their corresponding integer values.
• Test Cases: The RomanNumeralTest class contains test cases for basic and complex Roman numeral strings.

Usage

To use the RomanNumeral class, create an instance of the class and call the romanToInt(String s) method with a Roman numeral string as an argument.

RomanNumeral romanConverter = new RomanNumeral();
int number = romanConverter.romanToInt("IX"); // returns 9
System.out.println(number);

Testing

The application includes a basic testing setup with two methods:

• testRomanToIntBasic(): Tests the conversion of a simple Roman numeral.
• testRomanToIntComplex(): Tests the conversion of a more complex Roman numeral that includes subtractive notation.

The RomanNumeralTest class provides a placeholder for an assertEquals method, which needs to be implemented or replaced with an assertion method from a proper testing library.

Setup

Compile the Java classes using a Java compiler:

javac RomanNumeral.java
RomanNumeralTest.java

Run the tests:

java RomanNumeralTest