import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.TreeSet;
public class ItemSet {
public static void main(String args[]) {
String names[] = { "Item 1", "Item 2", "Item 3"};
Set moons = new HashSet();
int namesLen = names.length;
int index;
for (int i = 0; i < 100; i++) {
index = (int) (Math.random() * namesLen);
moons.add(names[index]);
}
Iterator it = moons.iterator();
while (it.hasNext()) {
System.out.println(it.next());
}
System.out.println("---");
Set orderedMoons = new TreeSet(moons);
it = orderedMoons.iterator();
while (it.hasNext()) {
System.out.println(it.next());
}
}
}
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