The hashCode() method of UUID class in Java is generally used to get the hash code value of the UUID.
Syntax:
public int hashCode()
Parameters: This method does not take any parameter.
Return Value: This method returns an integer value which is the hashCode value for this UUID instance.
Below programs illustrate the working of hashCode() method:
Program 1:
// Java code to illustrate hashCode() 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 hashCode value        System.out.println("The hashCode value is: "                           + UUID_1.hashCode());    }} |
Output:
UUID: 58e0a7d7-eebc-11d8-9669-0800200c9a66 The hashCode value is: 3744873
Program 2:
// Java code to illustrate hashCode() 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 hashCode Value        System.out.println("The hashCode value is: "                           + UUID_1.hashCode());    }} |
Output:
UUID: 5fc03087-d265-11e7-b8c6-83e29cd24f4c The hashCode value is: -1447957042
