import org.w3c.dom.*;
import javax.xml.parsers.*;
import java.io.*;

public class GetRootNode{
	public static void main(String[] args) {
		try{
			BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
			System.out.print("Enter xml file name: ");
			String str = bf.readLine();
			File file = new File(str);
			if (file.exists()){
				DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance();
				DocumentBuilder builder = fact.newDocumentBuilder();
				Document doc = builder.parse(str);
				Node node = doc.getDocumentElement();
				String root = node.getNodeName();
				System.out.println("Root Node: " + root);
			}
			else{
				System.out.println("File not found!");
			}
		}
		catch(Exception e){}
	}
}