Java UUID string representation natural ordering
comparison, java, string, uuid
Solution
In short, no. Here's a quick counter-example of two UUIDs for which the assertion does not hold:
- b230f7ab-9420-4a3e-a684-284c609e76a5
- 76d1f3c9-fc72-4f1a-ab48-28a858d760c5
Using the compareTo from UUID you get -1, while compareTo from the String results in 43.
Problem
Say I have two UUID instances: ``` uuid1 = UUID.randomUUID(); uuid2 = UUID.randomUUID(); ``` If those two compare such that `uuid1` is less than `uuid2` i.e., ``` uuid1.compareTo(uuid2) // -1 ``` is it always true that their string representations will compare to give the same result, i.e., ``` uuid1.toString().compareTo(uuid2.toString()) // -1 ???? ```