Error 403 Reported when trying to access web page through a program.

Question

I was writing a program for fun, to try to download a web page, pdf or anything from the web. The program works fine when given local file system path in URL and also works well when i tried to access a page from the tomcat installed on my machine but gives a error 403 when tried to access URL's outside the system. Tried to read about 403, seems that many sites does not allow to access a particular URL directly using the directory structure, you have to pass thru different hyperlinks before reaching resource.
IS THERE ANY WAY THIS PROBLEM CAN BE SOLVED.
import java.io.*;
import java.net.*;
class TestDownload
     public static void main(String[] args)
          try
               URL url = new URL("http://www.webmasterworld.com/forum48/1966.htm");
          //     URL url = new URL("http://localhost:8080/index.html");
          //     URL url = new URL("file:\\C:\\web_2.pdf");
               URLConnection connection = url.openConnection();
               InputStream stream = connection.getInputStream();
               BufferedInputStream in = new BufferedInputStream(stream);
               FileOutputStream file = new FileOutputStream("x.html");
               BufferedOutputStream out = new BufferedOutputStream(file);
               int i;
               while ((i = in.read()) != -1) {
                    out.write(i);
               out.flush();
          catch(IOException e)
               e.printStackTrace();
          System.out.println("Hello World!");
}

Answer 1

I was writing a program for fun, to try to download a web page, pdf or anything from the web. The program works fine when given local file system path in URL and also works well when i tried to access a page from the tomcat installed on my machine but gives a error 403 when tried to access URL's outside the system. Tried to read about 403, seems that many sites does not allow to access a particular URL directly using the directory structure, you have to pass thru different hyperlinks before reaching resource.
IS THERE ANY WAY THIS PROBLEM CAN BE SOLVED.
import java.io.*;
import java.net.*;
class TestDownload
     public static void main(String[] args)
          try
               URL url = new URL("http://www.webmasterworld.com/forum48/1966.htm");
          //     URL url = new URL("http://localhost:8080/index.html");
          //     URL url = new URL("file:\\C:\\web_2.pdf");
               URLConnection connection = url.openConnection();
               InputStream stream = connection.getInputStream();
               BufferedInputStream in = new BufferedInputStream(stream);
               FileOutputStream file = new FileOutputStream("x.html");
               BufferedOutputStream out = new BufferedOutputStream(file);
               int i;
               while ((i = in.read()) != -1) {
                    out.write(i);
               out.flush();
          catch(IOException e)
               e.printStackTrace();
          System.out.println("Hello World!");
}