The spliterator() method of PriorityBlockingQueue returns a Spliterator of the same elements as PriorityBlockingQueue. The returned iterator is weakly consistent. It can be used with Streams in Java 8. Also it can traverse elements individually and in bulk too.Spliterator is better way to traverse over element because it provides more control on elements.
Syntax:
public Spliterator spliterator()
Returns: This method returns a Spliterator over the elements in PriorityBlockingQueue.
Below programs illustrate spliterator() method of PriorityBlockingQueue:
Example 1: Program to demonstrate spliterator() method on PriorityBlockingQueue which contains a list of numbers.
// Java Program Demonstrate spliterator()// method of PriorityBlockingQueue import java.util.concurrent.PriorityBlockingQueue;import java.util.*;public class GFG { public static void main(String[] args) { // define capacity of PriorityBlockingQueue int capacityOfQueue = 5; // create object of PriorityBlockingQueue PriorityBlockingQueue<Integer> PrioQueue = new PriorityBlockingQueue<Integer>(capacityOfQueue); // Add numbers to PriorityBlockingQueue PrioQueue.put(7855642); PrioQueue.put(35658786); PrioQueue.put(5278367); PrioQueue.put(74381793); PrioQueue.put(76487590); PrioQueue.put(87625142); // create Spliterator of PrioQueue // using spliterator() method Spliterator<Integer> numbers = PrioQueue.spliterator(); // print result from Spliterator System.out.println("list of Numbers:"); // forEachRemaining method of Spliterator numbers.forEachRemaining((n) -> System.out.println(n)); }} |
Output:
list of Numbers: 5278367 35658786 7855642 74381793 76487590 87625142
Example 2: Program to demonstrate spliterator() method on PriorityBlockingQueue which contains a list of names.
// Java Program Demonstrate spliterator()// method of PriorityBlockingQueue import java.util.concurrent.PriorityBlockingQueue;import java.util.*;public class GFG { public static void main(String[] args) { // define capacity of PriorityBlockingQueue int capacityOfQueue = 5; // create object of PriorityBlockingQueue which contains // name of students PriorityBlockingQueue<String> names = new PriorityBlockingQueue<String>(capacityOfQueue); // Add names of students of girls college names.add("Joyita"); names.add("Priyanka"); names.add("Joydeep"); // create Spliterator of PrioQueue // using spliterator() method Spliterator<String> list = names.spliterator(); // print result from Spliterator System.out.println("list of Names:"); // forEachRemaining method of Spliterator list.forEachRemaining((n) -> System.out.println(n)); }} |
Output:
list of Names: Joydeep Priyanka Joyita