public interface Dictionary {
	public boolean containsKey(String key);
	public boolean containsValue(Object value);
	public Object get(String key);
	public Object put(String key,Object value);
	public Object remove(String key);
	public boolean isEmpty();
	public boolean equals(Object obj);
	public int size();
	public java.util.Iterator keys();
	public java.util.Iterator values();
}