Change apache server's default listening port

Tested on VPS hosting using ubuntu server 10.04.

Change the port number in the following files:

/etc/apache2/sites-enabled/example.com
/etc/apache2/ports.conf
/etc/apache2/sites-available/default

Finally, remember to restart apache server:

/etc/init.d/apache2 restart

Question Paper Downloader for Thaparians

Latest Software here
Latest Code here

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.FileOutputStream;
import java.io.BufferedOutputStream;
import java.net.URL;

public class FileDownloader
{
 public static void main(String args[])
 {
  if(args.length != 2 && !(args[0].equals(""))){
   System.out.println("Usage: <web-link> <new-filename>");
  }else{try{
   if((args[0].substring(7,10)).equals("172"))
    args[0] = "http://cl.thapar.edu/" + args[0].substring(20);
   System.out.println("FileDownloader: "+args[0]+" "+args[1]);
   URL url = new URL(args[0]);
   java.io.BufferedInputStream in = new BufferedInputStream(url.openStream());
   java.io.FileOutputStream fos = new FileOutputStream(args[1]+".pdf");
   java.io.BufferedOutputStream bout = new BufferedOutputStream(fos,1024);
   byte[] data = new byte[1024];
   int x=0;
   while((x=in.read(data,0,1024))>=0)
   {
    bout.write(data,0,x);
   }
   bout.close();
   in.close();
  }catch(IOException e){
   System.out.println(e.toString());
  }}
 }
}