This is a simple Spring Boot command line application that will return you a Roman Numeral for a given integer input.
NB: Only single integers between 1 and 3999 (inclusive) are supported. Any other input will result in an error message. See examples below.
To build the app, simply run the following command at the terminal:
./mvnw clean install -Pintegration-test
This will then build an executable jar artifact in the target directory called roman-numerals-1.0.jar.
Either place the above named file in your path, or cd into the target directory and run the app as per the examples below:
./roman-numerals-1.0.jar 1
1 => I
./roman-numerals-1.0.jar 5
5 => V
./roman-numerals-1.0.jar 10
10 => X
./roman-numerals-1.0.jar 2018
2018 => MMXVIII
Examples of a unsupported input is given below:
./roman-numerals-1.0.jar 0
IllegalArgumentException: Numbers less than 1 are not supported.
./roman-numerals-1.0.jar 4000
IllegalArgumentException: Numbers over 3999 are not supported.
./roman-numerals-1.0.jar 1.2
The Roman Numerals Generator can only convert numbers (integers)!
./roman-numerals-1.0.jar roman
The Roman Numerals Generator can only convert numbers (integers)!
./roman-numerals-1.0.jar 1 23
The Roman Numerals Generator can only convert a single number!