Program: How to copy all elements from HashSet to an array?

Below example shows how to copy all elements from HashSet to an array. By calling toArray() method and passing existing array object to this method, we can copy all elements of HashSet to an array.

package com.java2novice.hashset;

import java.util.HashSet;

public class MyHashSetToArray {

	public static void main(String a[]){
		HashSet<String> hs = new HashSet<String>();
		//add elements to HashSet
		hs.add("first");
		hs.add("second");
		hs.add("third");
		System.out.println("HashSet content: ");
		System.out.println(hs);
		String[] strArr = new String[hs.size()];
		hs.toArray(strArr);
		System.out.println("Copied array content:");
		for(String str:strArr){
			System.out.println(str);
		}
	}
}

HashSet content: 
[second, third, first]
Copied array content:
second
third
first