Java UUID - getMostSignificantBits() Method

The java.util.UUID.getMostSignificantBits() method returns the most significant 64 bits of this UUID's 128 bit value.

Syntax

public long getMostSignificantBits()

Parameters

No parameter is required.

Return Value

Returns the most significant 64 bits of this UUID's 128 bit value.

Exception

NA.

Example:

In the example below, the java.util.UUID.getMostSignificantBits() method returns the most significant 64 bits of the given UUID's 128 bit value.

import java.util.*;

public class MyClass {
  public static void main(String[] args) {
    //creating an UUID
    UUID uid = UUID.fromString("d81e4f2e-cdf2-10e6-529b-7df92533d1cb");

    //printing most significant bits
    System.out.println("Most Significant bits: " + uid.getMostSignificantBits());  
  }
}

The output of the above code will be:

Most Significant bits: -2873772449773514522

❮ Java.util - UUID