Java CharacterData .substringData (int offset, int count)

String substringData(int offset,   int count)   throws DOMException

import java.io.StringReader;
//  w  ww  .j  a  v  a  2 s.c om
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.CDATASection;
import org.w3c.dom.CharacterData;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;

public class Main {
  public static void main(String[] argv) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

    InputSource is = new InputSource();
    is.setCharacterStream(new StringReader(xmlRecords));
    
    Document doc = factory.newDocumentBuilder().parse(is);

    CDATASection cdataNode = doc.createCDATASection("");

    CharacterData cdata = cdataNode;

    
    cdata.setData("from java2s.com");
    System.out.println(cdataNode.substringData(2, 4));
  }
  static String xmlRecords = "<data></data>";
}