The node() method of UUID class in Java is generally used to get the node value associated with this UUID.
Syntax:
public long node()
Parameters: This method does not take any parameter.
Return Value: This method returns an long value which is the node value associated with this UUID.
Exception: This method throws UnsupportedOperationException If this UUID is not a version 1 UUID
Below programs illustrate the working of node() method:
Program 1:
// Java code to illustrate node() 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 node value        System.out.println("The node value is: "                           + UUID_1.node());    }} |
Output:
UUID: 58e0a7d7-eebc-11d8-9669-0800200c9a66 The node value is: 8796630719078
Program 2:
// Java code to illustrate node() 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 node Value        System.out.println("The node value is: "                           + UUID_1.node());    }} |
Output:
UUID: 5fc03087-d265-11e7-b8c6-83e29cd24f4c The node value is: 145009316876108
