SAXParserの挙動について

import java.io.File;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.helpers.DefaultHandler;

public class test extends DefaultHandler{

	public static void main(String[] args) throws Exception{
		SAXParserFactory spfactory = SAXParserFactory.newInstance();
		SAXParser parser = spfactory.newSAXParser();
		test handler = new test();
		parser.parse(new File("data.xml"),handler);
		System.out.println(System.getProperties());

	}

	public void characters(char[] ch, int offset, int length){
		String text = String.valueOf(ch, offset, length);
		if(text.trim().length() != 0)
			System.out.println(text);
	}
}