How to generate UUID / GUID in Java
generate
GUID
UUID
java
To generate a UUID / GUID (Universally / Globally Unique Identifier) in Java you can use java.util.UUID
class, the method UUID.randomUUID()
that will return a UUID Object. The class was introduced in Java 1.5.
Code
package com.admfactory.basic;
import java.util.UUID;
public class GUIDExample {
public static void main(String[] args) {
System.out.println("Creating random UUID/GUID in Java");
System.out.println();
UUID uuid = UUID.randomUUID();
String uuidStr = uuid.toString();
System.out.println("Random UUID[1]: " + uuidStr);
uuid = UUID.randomUUID();
uuidStr = uuid.toString();
System.out.println("Random UUID[2]: " + uuidStr);
}
}
Output
Creating random UUID/GUID in Java
Random UUID[1]: f2d8afc1-6dd8-4dc6-ad26-dc701284e43c
Random UUID[2]: cfb962cb-470c-4409-98aa-9f61c4efd92b