![Enchiridion mod wiki tab](https://loka.nahovitsyn.com/211.jpg)
![uuid generator java uuid generator java](https://examples.javacodegeeks.com/wp-content/uploads/2018/01/java-uuid-example-project-structure-deploy-guide-1.jpg)
Java UUID class has a method for manipulating the Leach-Salz variant (variant 2). Another popular usage of UUID is for generating primary key values in the database. We can use UUID class for generating a random file name, a session or a transaction id. class in Java represents an immutable UUID. The standard representation of UUID is made up of hexadecimal digits:Īnd has 36 characters that include four hyphens ‘-‘. It’s also popularly known as GUID (Globally Unique Identifier). * * 1.5 */ public final class UUID implements java.io.UUID (Universal Unique Identifier) represents a 128-bit long unique value. * * For more information including algorithms used to create UUID}s, * see RFC 4122: A * Universally Unique IDentifier (UUID) URN Namespace, section 4.2 * 'Algorithms for Creating a Time-Based UUID'. These types have a * version value of 1, 2, 3 and 4, respectively. There are four different basic types of UUIDs: time-based, DCE * security, name-based, and randomly generated UUIDs. * * The version field holds a value that describes the type of this * UUID}. The bit layout described above is valid only for a * UUID} with a variant value of 2, which indicates the Leach-Salz variant.
![uuid generator java uuid generator java](https://i.pinimg.com/originals/73/51/f1/7351f187f3c3f5419f25189a7b36cd5b.jpg)
* * The layout of a variant 2 (Leach-Salz) UUID is as follows: * * The most significant long consists of the following unsigned fields: * * 0xFFFFFFFF00000000 time_low * 0x00000000FFFF0000 time_mid * 0x000000000000F000 version * 0x0000000000000FFF time_hi * * The least significant long consists of the following unsigned fields: * * 0xC000000000000000 variant * 0x3FFF000000000000 clock_seq * 0x0000FFFFFFFFFFFF node * * * The variant field contains a value which identifies the layout of the * UUID}. The methods * of this class are for manipulating the Leach-Salz variant, although the * constructors allow the creation of any variant of UUID (described below). * * There exist different variants of these global identifiers. */ package java.util import curity.* /** * A class that represents an immutable universally unique identifier (UUID).
![uuid generator java uuid generator java](https://support.adeptia.com/hc/article_attachments/115017166723/Textual_Rule.png)
* * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit if you need additional information or have any * questions.
UUID GENERATOR JAVA SOFTWARE
* * You should have received a copy of the GNU General Public License version * 2 along with this work if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code).
![uuid generator java uuid generator java](http://cdn.crunchify.com/wp-content/uploads/2015/07/Java-UUID-UID-Message-Digest-and-Random-Number-Example.png)
UUID GENERATOR JAVA CODE
* * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is free software you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. Line source /* * Copyright (c) 2003, 2013, Oracle and/or its affiliates.
![Enchiridion mod wiki tab](https://loka.nahovitsyn.com/211.jpg)