Transformation code in java

import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

public class XMLTransform {

public static void main(String args[]) {

// if (args.length != 1) {
// System.err.println("Usage: java XMLTransform xmlfile.xml");
// System.exit(-1);
// }

try {
StreamSource source = new StreamSource(args[0]);
StreamSource stylesource = new StreamSource("t1.xsl");

TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(stylesource);

StreamResult result = new StreamResult(System.out);
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.transform(source, result);
} catch (Exception e) {
e.printStackTrace();
}
}
}