ArrayBlockingQueue spliterator() method in Java
Last Updated :
13 Dec, 2021
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The spliterator() method of ArrayBlockingQueue return a Spliterator on the elements of ArrayBlockingQueue. The returned iterator is weakly consistent. Spliterator can be used with Streams in Java 8. Spliterator can traverse elements individually and in bulk too.
Syntax:
public Spliterator spliterator()
Return Value: This method returns a Spliterator over the elements in ArrayBlockingQueue.
Below programs illustrates spliterator() method of ArrayBlockingQueue class:
Program 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));
}
}
Output:
Size of Spliterator : 4 list of Numbers: 22 34 45 67
Program 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);
}
}
Output:
Size of Spliterator : 6 list of Country names: Value = India Value = Pakistan Value = England Value = China Value = UAE Value = Spain
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ArrayBlockingQueue.html#spliterator--
