// -------------------------------------------------------------------------
/**
 *  This Collection interface is for abstract data types that contains a group
 *  of generic data type items and allows items to be added, removed, and
 *  check to see if an item already exists within it.
 *
 *  @author Kevin Buffardi and CMPS 1600 students
 *  @version Feb 10, 2014
 */
public interface Collection<T>
{
    public void add(T item);

    public void remove(T item);

    public boolean contains(T item);
}