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Java UUID timestamp() Method with Example

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

UUID Class timestamp() method

  • timestamp() method is available in java.util package.
  • timestamp() method is used to return the timestamp linked with this UUID.
  • timestamp() 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.
  • timestamp() method may throw an exception at the time of returning UUID timestamp.
    UnsupportedOperationException: This exception may throw when this UUID un-support version.

Syntax:

    public long timestamp();

Parameter(s):

  • It does not accept any parameter.

Return value:

The return type of the method is long, it retrieves this UUID timestamp value.

Example:

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

import java.util.*;

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

        //By using timestamp() method is to
        //return the timestamp value of this
        //UUID
        long time_stamp = uuid.timestamp();

        // Display time_stamp Value
        System.out.println("uuid.timestamp(): " + time_stamp);
    }
}

Output

uuid.timestamp(): 125411122076450816






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