Java tutorial
import java.util.Arrays; import java.util.HashSet; import java.util.Iterator; 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)); Iterator iter = set.iterator(); while (iter.hasNext()) { System.out.println(iter.next()); } } }