Java – string as document

I'm focusing on parsing XML using XPath. It gives the following example to open a document:

DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
domFactory.setNamespaceAware(true); // never forget this!
DocumentBuilder builder = domFactory.newDocumentBuilder();
Document doc = builder.parse("books.xml");

What I want to do is change it so that document reads the string variable I have created, not from the file How can I do this?

Solution

builder.parse(new InputSource(new StringReader("<some><xml></xml></some>")));

builder.parse(new InputSource(new StringReader("<some><xml></xml></some>")));