报无法加载主类的错误，求解

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import org.jdom2.Document;

import org.jdom2.Element;

import org.jdom2.output.XMLOutputter;

public class JDOMXMLＷriteDemo {

public static void main(String[] args) {

Element rss = new Element("rss");

rss.setAttribute("version", "2.0");

Document document = new Document(rss);

Element channel = new Element("channel");

channel.setText("<大家好>");

rss.addContent(channel);

XMLOutputter outputer = new XMLOutputter();

try {

outputer.output(document, new FileOutputStream(new File("news.xml")));

} catch (FileNotFoundException e) {

// TODO 自动生成的 catch 块

e.printStackTrace();

} catch (IOException e) {

// TODO 自动生成的 catch 块

e.printStackTrace();

}

}

}