How can I convert a Java HashSet to a primitive int array?

Question

I\'ve got a HashSet with a bunch of Integers in it. I want to turn it into an array, but calling

hashset.toArray();
         


        

Answer 1

You can convert a Set to Integer[] even without Apache Utils:

Set myset = new HashSet();
Integer[] array = myset.toArray(new Integer[0]);

However, if you need int[] you have to iterate over the set.