Java.utils.UUID Class Introduction

1 Introduction to UUID

The UUID meaning is a universal unique identification code (universally unique Identifier), which is a software-building standard,

is also used by the Open Software Foundation, OSF, as an organization for distributed computing environments

(Distributed Computing Environment, DCE) as part of the field.

The purpose of the UUID is to allow all elements in a distributed system to have unique information that can be identified without

The central control side to do the identification information designation. In this way, everyone can create a UUID that does not clash with others.
In such a case, there is no need to consider the name duplication problem when the database is established. Currently the most widely used UUID,

That is Microsoft's globally Unique Identifiers (GUIDs), while other important applications,
Linux ext2/ext3 file system, LUKS encryption partition, GNOME, KDE, Mac OS X, etc.

Java.utils.UUID Class Introduction