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Java UUID fromString() Method with Example

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

UUID Class fromString() method

• fromString() method is available in java.util package.
• fromString() method is used to return UUID from the given string denoting the name (na).
• fromString() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• fromString() method may throw an exception at the time of creating UUID.
  IllegalArgumentException: This exception may throw when the given parameter mismatch string denotation.

Syntax:

    public UUID fromString(String na);

Parameter(s):

• String na – represents the string that denotes the UUID name.

Return value:

The return type of the method is UUID, it creates UUID with the given name (na).

Example:

// Java program to demonstrate the example 
// of UUID fromString(String na) method of UUID 

import java.util.*;

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

        // Display UUID
        System.out.println(" UUID.fromString(): " + uuid);
    }
}

Output

UUID.fromString(): 46400000-8cc0-11bd-b43e-10d46e4ef14d