import java.util.*;

public enum CollectionType
{
    TreeSet(TreeSet.class),
    ArrayList(ArrayList.class),
    LinkedList(LinkedList.class);

    private final Class<?> collectionClass;

    private CollectionType(Class<?> collectionClass) {
        this.collectionClass  = collectionClass;
    }

    public Class<?> getCollectionClass()
    {
        return collectionClass;
    }
}