code: public final int getIgnoreCase(String key)
    {
  
      if (null == key)
          return INVALID_KEY;
  
      for (int i = 0; i < m_firstFree; i++)
      {
        if (m_map[i].equalsIgnoreCase(key))
          return m_values[i];
      }
  
      return INVALID_KEY;
    }
docs: Tell if the table contains the given string. Ignore case.
  
  @param key String to look for
  
  @return The string's int value