The iterator() method of java.util.concurrent.LinkedTransferQueue is an in-built function in Java which is used to return an iterator over the elements in this queue in proper sequence.
Syntax:
LinkedTransferQueue.iterator()
Return Value: The function returns an iterator over the elements in this queue in proper sequence.
Below programs illustrate the LinkedTransferQueue.iterator() method:
Program 1:
// Java Program Demonstrate iterator()// method of LinkedTransferQueue */  import java.util.Iterator;import java.util.concurrent.LinkedTransferQueue;  class LinkedTransferQueueIteratorExample1 {    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("fun!!");          // Returns an iterator over the elements        Iterator<String> iterator = queue.iterator();          // Printing the elements of the queue        while (iterator.hasNext())            System.out.print(iterator.next() + " ");    }} |
Output:
Gfg is fun!!
Program 2:
// Java Program Demonstrate iterator()// method of LinkedTransferQueue */  import java.util.Iterator;import java.util.concurrent.LinkedTransferQueue;  class LinkedTransferQueueIteratorExample2 {    public static void main(String[] args)    {          // Initializing the queue        LinkedTransferQueue<Integer>            queue = new LinkedTransferQueue<Integer>();          // Adding elements to this queue        queue.add(10);        queue.add(15);        queue.add(20);        queue.add(25);          // Returns an iterator over the elements        Iterator<Integer> iterator = queue.iterator();          // Printing the elements of the queue        System.out.print("The queue contains ");        while (iterator.hasNext())            System.out.print(iterator.next() + " ");    }} |
Output:
The queue contains 10 15 20 25
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/LinkedTransferQueue.html#iterator()
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