CopyOnWriteArraySet spliterator() method in Java

The spliterator() method of CopyOnWriteArraySet returns an spliterator over the elements in this Set in proper sequence. There is no need of synchronization while operating on the spliterator.

Syntax:

public Spliterator spliterator()

Return Value: The function returns an spliterator over the elements in the Set.

Below programs illustrate the above function:

Program 1:

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// Java Program to illustrate the CopyOnWriteArraySet
// spliterator() method in Java
  
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create object of CopyOnWriteArraySet
        CopyOnWriteArraySet<Integer> ArrSet
            = new CopyOnWriteArraySet<Integer>();
  
        // Add elements
        ArrSet.add(32);
        ArrSet.add(67);
        ArrSet.add(67);
        ArrSet.add(100);
  
        // print CopyOnWriteArraySet
        System.out.println("CopyOnWriteArraySet: "
                           + ArrSet);
  
        Spliterator<Integer>
            numbers = ArrSet.spliterator();
  
        // print result from Spliterator
        System.out.println("Set of Numbers:");
  
        // forEachRemaining method  of Spliterator
        numbers
            .forEachRemaining(
                (n) -> System.out.println(n));
    }
}

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Output:

CopyOnWriteArraySet: [32, 67, 100]
Set of Numbers:
32
67
100

Program 2:

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// Java Program to illustrate the CopyOnWriteArraySet
// spliterator() method in Java
  
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create object of CopyOnWriteArraySet
        CopyOnWriteArraySet<String> ArrSet
            = new CopyOnWriteArraySet<String>();
  
        // Add elements
        ArrSet.add("gopal");
        ArrSet.add("gfg");
        ArrSet.add("jgec");
        ArrSet.add("sudo");
  
        // print CopyOnWriteArraySet
        System.out.println("CopyOnWriteArraySet: "
                           + ArrSet);
  
        Spliterator<String>
            numbers = ArrSet.spliterator();
  
        // print result from Spliterator
        System.out.println("Set of strings:");
  
        // forEachRemaining method  of Spliterator
        numbers
            .forEachRemaining(
                (n) -> System.out.println(n));
    }
}

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Output:

CopyOnWriteArraySet: [gopal, gfg, jgec, sudo]
Set of strings:
gopal
gfg
jgec
sudo

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CopyOnWriteArraySet.html#spliterator–



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