import java.util.Enumeration;

class EnumerationStrategy implements Strategy
	{
	public void EnumerationStrategy() {}

	public boolean hasMoreChildren(Object o)
		{
		if (o instanceof Enumeration)
			return ((Enumeration)o).hasMoreElements();
		return false;
		}

	public Object nextChild(Object o)
		{
		if (o instanceof Enumeration)
			return ((Enumeration)o).nextElement();
		return null;
		}
	}