我如何从公共无效方法中获取字段？

Question

I have the method

public String parseRootElement(InputStream xmlStream) throws SAXException {
    String name;
        try {
        DefaultHandler handler;
            handler = new DefaultHandler() {
                @Override
                public void  startElement(String uri,String localName,String qName,Attributes attributes){
                 name=qName;
                 }
                  };
            SAXParserFactory factory = SAXParserFactory.newInstance();
            SAXParser parser=factory.newSAXParser();
            parser.parse(xmlStream, handler);

            return name;
        } catch (ParserConfigurationException | IOException ex) {
            throw new IllegalStateException("ParserConfigurationException", ex);
        }
    }

How can I get qName from public void startElement() ? name=qName doesnt work, because of

local variable input is accessed within inner class; needs to be declared final

There are a lot of similar questions but I still be dumb.

Answer 1

Change String name; to final String[] name = new String[1]; , name=qName; to name[0]=qName; and return name; to return name[0]; .

That creates an array where the result is stored in and retrieved from. By storing the result in an array lets us make the "name" variable final and thus the compiler happy.