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
// Java Program Demonstrate spliterator()// method of ArrayBlockingQueueimport 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
// Java Program Demonstrate spliterator()// method of ArrayBlockingQueueimport 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–
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