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package cn.netkiller.example.uuid; import java.util.UUID; public class UuidTest { public UuidTest() { // TODO Auto-generated constructor stub } public static void main(String[] args) { UUID uuid = UUID.randomUUID(); String randomUUIDString = uuid.toString(); System.out.println("Random UUID String = " + randomUUIDString); System.out.println("UUID version = " + uuid.version()); System.out.println("UUID variant = " + uuid.variant()); } }