How can parsing the XML data using DOM and SAX?

How can parsing the XML data using DOM and SAX?

Steps to use DOM:

  1. Import the XML-related packages: import org.
  2. Create a document builder: DocumentBuilderFactory factory =
  3. Create a document from a file: StringBuilder xmlStringBuilder = new StringBuilder();
  4. Extract the root element: Element root = document.
  5. Examine the attributes:
  6. Examine the sub elements:

How do you use parsing in XML?

The parser reads an XML document from the beginning to the end. When it encounters a node in the document, it generates an event that triggers the corresponding event handler for that node. The handler thus applies the application logic to process the node specifically.

How does SAX parser work example?

SAXParser provides method to parse XML document using event handlers. This interface contains callback methods that receive notification when an event occurs. For example StartDocument, EndDocument, StartElement, EndElement, CharacterData etc. org.

Can we create an XML document using SAX parser?

In real-life applications, you will want to use the SAX parser to process XML data and do something useful with it. This section examines an example JAXP program, SAXLocalNameCount, that counts the number of elements using only the localName component of the element, in an XML document.

Can we modify an XML document using SAX parser?

SAX is not meant for modifying an existing XML.

How SAX is an alternative method for parsing XML document?

SAX (Simple API for XML) is an event-driven algorithm for parsing XML documents. SAX is an alternative to the Document Object Model (DOM). Where the DOM reads the whole document to operate on XML, SAX parsers read XML node by node, issuing parsing events while making a step through the input stream.

What kind of parsers are?

The parser is mainly classified into two categories, i.e. Top-down Parser, and Bottom-up Parser.