/**
   An interface that describes the operations of a set of objects.
   
   @author Charles Hoot, Frank M. Carrano, Timothy M. Henry
   @version 5.0
*/
public interface SetInterface<T>
{
	public int getCurrentSize();
 	public boolean isEmpty();
   
	/** Adds a new entry to this set, avoiding duplicates.
	    @param newEntry  The object to be added as a new entry.
	    @return  True if the addition is successful, or 
                false if the item already is in the set. */
	public boolean add(T newEntry);

	/** Removes a specific entry from this set, if possible.
       @param anEntry  The entry to be removed.
       @return  True if the removal was successful, or false if not. */
	public boolean remove(T anEntry);
   
	public T remove();
	public void clear();
	public boolean contains(T anEntry);
	public T[] toArray();
} // end SetInterface