U can get all the attributes for the element "Fichero" using the following code. From that if u want only attribute "Nombre" u can do so.

public static void main(String args[])
	{
		DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
		dbf.setValidating(true);
		dbf.setIgnoringElementContentWhitespace(true) ;
		try{
			DocumentBuilder db = dbf.newDocumentBuilder();
			Document doc = db.parse(new File("ficheros.xml"));

			if(doc!=null)
			{
				Element root = doc.getDocumentElement();
				System.out.println("Root Element: "+root.getNodeName());
				NodeList nl = root.getElementsByTagName("Fichero");
				Node vnode;
				NamedNodeMap nm;
				for(int j=0;j				{

					vnode = nl.item(j);
					System.out.println("
"+vnode.getNodeName()+j);
					if(vnode.hasAttributes())
					{
						System.out.println("Attributes:");
						nm = vnode.getAttributes();
						for(int i=0;i						{
							Node attr = nm.item(i);
							System.out.println(attr.getNodeName()+"="+"""+attr.getNodeValue()+""");
						}
					}
				}

			}
		}catch(Exception e)
		{
			System.out.println("Error: "+e);
		}
	}