CopyOnWriteArraySet toArray() method in Java with Example

// Java Program Demonstrate toArray()
// method of CopyOnWriteArraySet

import java.util.concurrent.*;
import java.util.*;

public class GFG {
    public static void main(String[] args)
        throws IllegalStateException
    {

        // create object of CopyOnWriteArraySet
        CopyOnWriteArraySet<Integer> set
            = new CopyOnWriteArraySet<Integer>();

        // Add numbers to end of CopyOnWriteArraySet
        set.add(7855642);
        set.add(35658786);
        set.add(5278367);
        set.add(74381793);

        System.out.println("CopyOnWriteArraySet: "
                           + set);

        Object[] a = set.toArray();
        System.out.println("Returned Array: "
                           + Arrays.toString(a));
    }
}

// Java code to illustrate toArray(arr[])

import java.util.concurrent.*;
import java.util.*;

public class CopyOnWriteArraySetDemo {
    public static void main(String args[])
    {
        // Creating an empty CopyOnWriteArraySet
        CopyOnWriteArraySet<String> set
            = new CopyOnWriteArraySet<String>();

        // Use add() method to add
        // elements into the CopyOnWriteArraySet
        set.add("Welcome");
        set.add("To");
        set.add("Geeks");
        set.add("For");
        set.add("Geeks");

        // Displaying the CopyOnWriteArraySet
        System.out.println("The CopyOnWriteArraySet: "
                           + set);

        // Creating the array and using toArray()
        String[] arr = new String[5];
        arr = set.toArray(arr);

        // Displaying arr
        System.out.println("Returned Array: "
                           + Arrays.toString(arr));
    }
}