XML : Java: file not found when creating an xml file

I am trying to create an XML file in Java and I pass the name of the file to the function argument, but I get the error: " The system cannot find the file specified". Does anyone have any idea about this error solution? My code is like:

  static Document loadDocument(String fileName) {      File inputFile = new File(fileName);      DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();      DocumentBuilder docBuilder = null;      try {          docBuilder = docFactory.newDocumentBuilder();      } catch (ParserConfigurationException e) {          e.printStackTrace();      }      Document doc = null;      try {          doc = docBuilder != null ? docBuilder.parse(inputFile) : null;      } catch (SAXException | IOException e) {          e.printStackTrace();      }      return doc;  }