public String toHELM2() {
		StringBuilder notation = new StringBuilder();
		for (int i = 0; i < listMonomerNotations.size(); i++) {
			notation.append(listMonomerNotations.get(i).toHELM2() + ".");

		}

		notation.setLength(notation.length() - 1);
		return notation.toString();
	}
public String toHELM2 ( ) { StringBuilder notation = new StringBuilder ( ) ; for ( int i = 0 ; i < listMonomerNotations . size ( ) ; i ++ ) { notation . append ( listMonomerNotations . get ( i ) . toHELM2 ( ) + "." ) ; } notation . setLength ( notation . length ( ) - 1 ) ; return notation . toString ( ) ; }
method to generate a valid HELM2 of this object

@return valid HELM2