这段源程序问题出在哪里？

import java.net.*;import java.io.*;public class ReadURL { static public void main(String args[]){ try{ URL url=new URL(args[0]); DataInputStream din=new DataInputStream(url.openStream()); String inputLine; while((inputLine=din.readLine())!=null){ System.out.println(inputLine); } din.close(); } catch(MalformedURLException e1){} catch(IOException e2){}}}请帮我看看这段程序到底问题出在哪里，怎么修改？

热心网友

把DataInputStream din=new DataInputStream(url.openStream());换成BufferedReader din = new BufferedReader(new InputStreamReader((url.openStream())));