Cosmetic.
@Fireduck did you roll the input parsing yourself?
in that it is a simple non-locale aware Double.parseValue(), kinda
That is a fair bug
Is there a good way to parse doubles in a locale aware way?
https://www.oracle.com/technetwork/java/javase/12-relnote-issues-5211422.html This document describes important changes and information of the JDK 12 release.
dunno in java, but probably there is
java has everything and the kitchen sink baked in
or you pass an extra locale object to the constructor or something
I'll take a look