The timestamp() method of UUID class in Java is generally used to get the stamp value associated with a particular UUID.
Syntax:
public long timestamp()
Parameters: This method does not take any parameter.
Return Value: This method returns the time stamp value of this UUID.
Exception: This method throws UnsupportedOperationException if this UUID is not a part of version 1 UUID.
Below programs illustrate the working of timestamp() method:
Program 1:
// Java code to illustrate timestamp() method  import java.util.*;  public class UUID_Demo {    public static void main(String[] args)    {          // Creating two UUIDs        UUID UUID_1            = UUID                  .fromString(                      "58e0a7d7-eebc-11d8-9669-0800200c9a66");          // Displaying the UUID        System.out.println("UUID: "                           + UUID_1);          // Displaying the timestamp value        System.out.println("The timestamp value is: "                           + UUID_1.timestamp());    }} |
Output:
UUID: 58e0a7d7-eebc-11d8-9669-0800200c9a66 The timestamp value is: 133118681719810007
Program 2:
// Java code to illustrate timestamp() method  import java.util.*;  public class UUID_Demo {    public static void main(String[] args)    {          // Creating two UUIDs        UUID UUID_1            = UUID                  .fromString(                      "5fc03087-d265-11e7-b8c6-83e29cd24f4c");          // Displaying the UUID        System.out.println("UUID: "                           + UUID_1);          // Displaying the timestamp Value        System.out.println("The timestamp value is: "                           + UUID_1.timestamp());    }} |
Output:
UUID: 5fc03087-d265-11e7-b8c6-83e29cd24f4c The timestamp value is: 137309646498050183
