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Java UUID randomUUID() Method with Example

UUID Class randomUUID() method: Here, we are going to learn about the randomUUID() method of UUID Class with its syntax and example.
Submitted by Preeti Jain, on February 21, 2020

UUID Class randomUUID() method

• randomUUID() method is available in java.util package.
• randomUUID() method is used to return type 4 UUID and it constructed by pseudo-random number generator.
• randomUUID() method is a static method, it is accessible with the class name and if we try to access the method with the class object then we will not get an error.
• randomUUID() method does not throw an exception at the time of generating random UUID.

Syntax:

    public UUID randomUUID();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is UUID, it returns type 4 UUID.

Example:

// Java program to demonstrate the example 
// of UUID randomUUID() method of UUID 

import java.util.*;

public class RandomUUIDOfUUID {
    public static void main(String[] args) {
        // Instantiate UUID 
        UUID uuid = UUID.fromString("46400000-8cc0-11bd-b43e-10d46e4ef14d");

        // By using randomUUID() method is to
        // return the random UUID
        UUID random_uuid = uuid.randomUUID();

        // Display random_uuid Value
        System.out.println("uuid.randomUUID(): " + random_uuid);
    }
}

Output

uuid.randomUUID(): 91c606f6-d87f-4dd1-80b2-414b6ac38ad0