How do you deal with Java's weird behaviour with the modulus operator when using doubles?
For example, you would expect the result of 3.9 - (3.9 % 0.1) to be 3.9 (and indeed, Google says I'm not going crazy), but when I run it in Java I get 3.8000000000000003.
I understand this is a result of how Java stores and processes doubles, but is there a way to work around it?