Método ArrayBlockingQueue spliterator() en Java

El método spliterator() de ArrayBlockingQueue devuelve un Spliterator en los elementos de ArrayBlockingQueue. El iterador devuelto es débilmente coherente. Spliterator se puede usar con Streams en Java 8. Spliterator puede atravesar elementos individualmente y también en masa.
Sintaxis: 

public Spliterator spliterator()

Valor de retorno: este método devuelve un Spliterator sobre los elementos en ArrayBlockingQueue.
Los siguientes programas ilustran el método spliterator() de la clase ArrayBlockingQueue:
Programa 1: 

// Java Program Demonstrate spliterator()
// method of ArrayBlockingQueue
 
import java.util.concurrent.ArrayBlockingQueue;
import java.util.*;
public class GFG {
 
    public static void main(String[] args)
    {
        // define capacity of ArrayBlockingQueue
        int capacityOfQueue = 7;
 
        // create object of ArrayBlockingQueue
        ArrayBlockingQueue<Integer> Queue
            = new ArrayBlockingQueue<Integer>(capacityOfQueue);
 
        // Add element to ArrayBlockingQueue
        Queue.add(22);
        Queue.add(34);
        Queue.add(45);
        Queue.add(67);
 
        // create Spliterator of Queue
        // using spliterator() method
        Spliterator<Integer> numbers = Queue.spliterator();
 
        // getExactSize of Spliterator
        System.out.println("Size of Spliterator : "
                           + numbers.estimateSize());
 
        System.out.println("list of Numbers:");
        // forEachRemaining method of Spliterator
        numbers.forEachRemaining((n) -> System.out.println(n));
    }
}

Size of Spliterator : 4
list of Numbers:
22
34
45
67

Programa 2:

// Java Program Demonstrate spliterator()
// method of ArrayBlockingQueue
 
import java.util.concurrent.ArrayBlockingQueue;
import java.util.*;
public class GFG {
 
    public static void main(String[] args)
    {
        // define capacity of ArrayBlockingQueue
        int capacityOfQueue = 7;
 
        // create object of ArrayBlockingQueue
        ArrayBlockingQueue<String> QueueOfStrings
            = new ArrayBlockingQueue<String>(capacityOfQueue);
 
        // Add element to ArrayBlockingQueue
        QueueOfStrings.add("India");
        QueueOfStrings.add("Pakistan");
        QueueOfStrings.add("England");
        QueueOfStrings.add("China");
        QueueOfStrings.add("UAE");
        QueueOfStrings.add("Spain");
 
        // create Spliterator of QueueOfStrings
        // using spliterator() method
        Spliterator<String>
            listOfStrings = QueueOfStrings.spliterator();
 
        // getExactSize of Spliterator
        System.out.println("Size of Spliterator : "
                           + listOfStrings.estimateSize());
 
        System.out.println("list of Country names:");
 
        // forEachRemaining method of Spliterator
        listOfStrings.forEachRemaining((str) -> print(str));
    }
    public static void print(String str)
    {
        System.out.println("Value = " + str);
    }
}

Size of Spliterator : 6
list of Country names:
Value = India
Value = Pakistan
Value = England
Value = China
Value = UAE
Value = Spain

Referencia: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ArrayBlockingQueue.html#spliterator–