is not abstract and does not override abstract method ERROR
Hello. I'm new at all this, and am attempting to recreate a sample code out of my book (Teach Yourself XML in 24 Hours), and I keep getting an error. I appriciate any help.
This is the Error that I get:
DocumentPrinter is notabstract and does not overrideabstract method skippedEntity(java.lang.String) in org.xml.sax.ContentHandler
publicclass DocumentPrinterimplements ContentHandler, ErrorHandler
^
This is the sourcecode:
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.ErrorHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;
publicclass DocumentPrinterimplements ContentHandler, ErrorHandler
{
// A Constant containing the name of the SAX parser to use.
privatestaticfinal String PARSER_NAME ="org.apache.xerces.parsers.SAXParser";
publicstaticvoid main(String[] args)
{
// Check to see whether the user supplied any command line arguments. If not, print an error and exit.
if (args.length == 0)
{
System.out.println("No XML document path specified.");
System.exit(1);
}
// Create a new instance of the DocumentPrinter class.
DocumentPrinter dp =new DocumentPrinter();
try
{
// Create a new instance of the XML Parser.
XMLReader parser = (XMLReader)Class.forName(PARSER_NAME).newInstance();
// Set the parser's content handler
// parser.setContentHandler(dp);
// Set the parsers error handler
parser.setErrorHandler(dp);
// Parse the file named in the argument
parser.parse(args[0]);
}
catch (Exception ex)
{
System.out.println(ex.getMessage());
ex.printStackTrace();
}
}
publicvoid characters(char[] ch,int start,int length)
{
String chars ="";
for (int i = start; i < start + length; i++)
{
chars = chars + ch[i];
}
System.out.println("Recieved characters: " + chars);
}
publicvoid startDocument()
{
System.out.println("Start Document.");
}
publicvoid endDocument()
{
System.out.println("End of Document.");
}
publicvoid startElement(String namespaceURI, String localName, String qName, Attributes atts)
{
System.out.println("Start element: " + localName);
for (int i = 0; i < atts.getLength(); i++)
{
System.out.println("Attribute: " + atts.getLocalName(i));
System.out.println("Value: " + atts.getValue(i));
}
}
publicvoid endElement(String namespaceURI, String localName, String qName)
{
System.out.println("End of element: " + localName);
}
publicvoid startPrefixMapping(String prefix, String uri)
{
System.out.println("Prefix mapping: " + prefix);
System.out.println("URI: " + uri);
}
publicvoid endPrefixMapping(String prefix)
{
System.out.println("End of prefix mapping: " + prefix);
}
publicvoid ignorableWhitespace(char[] ch,int start,int length)
{
System.out.println("Recieved whitespace.");
}
publicvoid processingInstruction(String target, String data)
{
System.out.println("Recieved processing instruction:");
System.out.println("Target: " + target);
System.out.println("Data: " + data);
}
publicvoid setDocumentLocation(Locator locator)
{
// Nada
}
publicvoid error(SAXParseException exception)
{
System.out.println("Parsing error on line " + exception.getLineNumber());
}
publicvoid fatalError(SAXParseException exception)
{
System.out.println("Fatal parsing error on line " + exception.getLineNumber());
}
publicvoid warning(SAXParseException exception)
{
System.out.println("Warning on line " + exception.getLineNumber());
}
}
