(length-index)*5);
(length-index-1)*5);
    public void removeAttribute (int index)    {	if (index >= 0 && index < length) {	    data[index] = null;	    if (index < length - 1) {		System.arraycopy(data, (index+1)*5, data, index*5,				 (length-index)*5);	    }	    length--;	} else {	    badIndex(index);	}    }