The first toArray() method will return an Object array containing all the elements in the collection.
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
public class MainClass {
public static void main(String[] a) {
String elements[] = { "A", "B", "C", "D", "E" };
Set set = new HashSet(Arrays.asList(elements));
Object[] arrObj = set.toArray();
for (int i = 0; i < arrObj.length; i++) {
System.out.println(arrObj[i]);
}
System.out.println(set);
}
}
D
A
C
B
E
[D, A, C, B, E]