import gnu.trove.set.hash.TIntHashSet;
public class TroveExample {
public static void main(String[] args) {
TIntHashSet set = new TIntHashSet();
set.add(1);
set.add(2);
set.add(3);
System.out.println("Size of set: " + set.size());
System.out.println("Contains 2: " + set.contains(2));
System.out.println("Contains 4: " + set.contains(4));
}
}
