Java tutorial
import java.util.Iterator; import java.util.LinkedHashSet; public class Main { public static void main(String[] args) { LinkedHashSet<Integer> lhashSet = new LinkedHashSet<Integer>(); lhashSet.add(new Integer("1")); lhashSet.add(new Integer("2")); lhashSet.add(new Integer("3")); Iterator itr = lhashSet.iterator(); while (itr.hasNext()) { System.out.println(itr.next()); } } }