code: public boolean contains(Node s)
    {
      runTo(-1);
  
      if (null == m_map)
        return false;
  
      for (int i = 0; i < m_firstFree; i++)
      {
        Node node = m_map[i];
  
        if ((null != node) && node.equals(s))
          return true;
      }
  
      return false;
    }
docs: Tell if the table contains the given node.
  
  @param s Node to look for
  
  @return True if the given node was found.