ConcurrentLinkedQueue iterator() method in Java

// Java Program Demonstrate iterator()
// method of ConcurrentLinkedQueue
import java.util.concurrent.*;
import java.util.*;
public class GFG {
    public static void main(String[] args)
    {
        // create an ConcurrentLinkedQueue
        ConcurrentLinkedQueue<String>
            queue = new ConcurrentLinkedQueue<String>();
        // Add String to queue
        queue.add("Aman");
        queue.add("Amar");
        queue.add("Sanjeet");
        queue.add("Rabi");
        // Displaying the existing ConcurrentLinkedQueue
        System.out.println("ConcurrentLinkedQueue :\n" + queue);
        // Call iterator() method
        Iterator iterator = queue.iterator();
        // Print elements of iterator
        System.out.println("\nThe String Values of iterator are:");
        while (iterator.hasNext()) {
            System.out.println(iterator.next());
        }
    }
}

// Java Program Demonstrate iterator()
// method of ConcurrentLinkedQueue
import java.util.concurrent.*;
import java.util.*;
public class GFG {
    public static void main(String[] args)
    {
        // create an ConcurrentLinkedQueue
        ConcurrentLinkedQueue<Integer>
            queue = new ConcurrentLinkedQueue<Integer>();
        // Add Numbers to queue
        queue.add(4353);
        queue.add(7824);
        queue.add(78249);
        queue.add(8724);
        // Displaying the existing ConcurrentLinkedQueue
        System.out.println("ConcurrentLinkedQueue: " + queue);
        // Call iterator() method
        Iterator values = queue.iterator();
        // Print elements of iterator
        System.out.println("\nThe Numbers of iterator are:");
        while (values.hasNext()) {
            System.out.println(values.next());
        }
    }
}