Parsing with Document Type Definitions

• When you parse an XML file with a DTD, tell the parser to ignore white space

  factory.setValidating(true);
  factory.setIgnoringElementContentWhitespace(true);

• If the parser has access to a DTD, it can fill in defaults for attributes
• For example, suppose a DTD defines a currency attribute for a price element:

  <!ATTLIST price currency CDATA "USD">

• If a document contains a price element without a currency attribute, the parser can supply the default:

  String attributeValue = priceElement.getAttribute("currency");
     // Gets "USD" if no currency specified