The code downloads web pages and subtitles but not youtube video ?

Question

The following code successfully downloads the yahoo page, if we specify its url, or a subtitle even, but when I give a youtube video url, it does download a video file, but the download stops very quickly, and the file never plays:
class read
     public static void main(String aa[])throws IOException
          byte a;
          int  b,c,d;
          URL url=new URL("http://www.youtube.com/v/sHQXU9Kzgr8&color1=0xb1b1b1&color2=0xd0d0d0&hl=en_US&feature=player_detailpage&fs=1");
          URLConnection conn=url.openConnection();
          InputStream stream=conn.getInputStream();
          FileOutputStream out=new FileOutputStream("/home/daud/Desktop/video");
          while ((b=stream.read())!=-1)
               out.write(b);
}Why doesn't it work for youtube ?

Answer 1

I wonder if it's because Youtube don't want all and sundry just leeching their content....
Did you have a question? Or was it simply the implicit "how do I leech intellectual property from Youtube?"