9. Write a Java application to validate the XML document using the SAX parser.

import java.io.File;

import javax.xml.XMLConstants;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;

import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;

public class SAXValidator {
    public static void main(String[] args) {

        String xmlFilePath = "C:\\Users\\91630\\OneDrive\\Desktop\\Web_technologies_lab\\Book\\book.xml";
        String xsdFilePath = "C:\\Users\\91630\\OneDrive\\Desktop\\Web_technologies_lab\\Book\\book.xsd";

        File xmlFile = new File(xmlFilePath);
        File xsdFile = new File(xsdFilePath);

        try {

            SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
            Schema schema = schemaFactory.newSchema(xsdFile);

            SAXParserFactory saxFactory = SAXParserFactory.newInstance();
            saxFactory.setSchema(schema);

            SAXParser parser = saxFactory.newSAXParser();
            parser.parse(xmlFile, new DefaultHandler() {
                @Override
                public void error(SAXParseException e) {
                    System.out.println("Validation Error: " + e.getMessage());
                }
            });
            System.out.println("XML file is valid according to the schema.");

        } catch (Exception e) {

            System.out.println("Validation error: " + e.getMessage());
        }
    }
}