public String stringValue(){
  if (actualValue == null) {
    return normalizedValue;
  }
 else {
    return actualValue.toString();
  }
}

public String stringValue ( ) { if ( actualValue == null ) { return normalizedValue ; } else { return actualValue . toString ( ) ; } }
return a string representation of the value . if there is an actual value , use tostring ; otherwise , use the normalized value .
