LinkedTransferQueue spliterator() method in Java

// Java Program Demonstrate Spliterator()
// method of LinkedTransferQueue 

import java.util.Spliterator;
import java.util.concurrent.LinkedTransferQueue;

class LinkedTransferQueueSpliteratorExample1 {
    public static void main(String[] args)
    {
        // Initializing the queue
        LinkedTransferQueue<String> queue = 
                   new LinkedTransferQueue<String>();

        // Adding elements to this queue
        queue.add("Gfg");
        queue.add("is");
        queue.add("best!!");

        // spliterator split and iterate
        // the split parts in parallel
        Spliterator<String> str = queue.spliterator();

        // performs the action for each remaining element
        str.forEachRemaining(
            (n) -> {
                String lc = n.toUpperCase();
                System.out.println(" Lower case = " + n);
                System.out.println(" Upper case = " + lc);
                System.out.println();
            });
    }
}

// Java Program Demonstrate Spliterator()
// method of LinkedTransferQueue 

import java.util.Spliterator;
import java.util.concurrent.LinkedTransferQueue;

class LinkedTransferQueueSpliteratorExample2 {
    public static void main(String[] args)
    {
        // Initializing the queue
        LinkedTransferQueue<Character> queue =
                  new LinkedTransferQueue<Character>();

        // Adding elements to this queue
        for (char ch = 'A'; ch <= 'Z'; ch++) {
            queue.add(ch);
        }

        // Printing elements in the queue
        System.out.print("The elements in the queue are : ");

        // spliterator  split and iterate
        // the split parts in parallel
        Spliterator<Character> str = queue.spliterator();

        // if element exists tryAdvance() will perform action
        while (str.tryAdvance((n) -> System.out.print(n + " ")))
            ;
    }
}