ArrayBlockingQueue spliterator() method in Java

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:

Praogram 1:

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// 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));
    }
}

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Output:


Size of Spliterator : 4
list of Numbers:
22
34
45
67





Praogram 2:











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// 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); 


    } 


} 



















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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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