Is there a way to generate a random UUID, which consists only of numbers?

Question

Java\'s UUID class generates a random UUID. But this consists of letters and numbers. For some applications we need only numbers. Is there a way to generate random UUID that

Answer 1

Random is not universally unique. If you want to use UUIDs as opposed to the Random class as suggested by others, you could simply use a regex to strip out everything except numerics from the UUID. Try something like this,

String id = UUID.randomUUID().toString().replaceAll("[^0-9]", "");