Where does this file go??

Question

import java.net.URL;
import java.net.MalformedURLException;
import java.io.InputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.FileNotFoundException;
public class Test{
       public static void main(String[] param){
              if(param.length!=4)
              System.out.println("please provide 4 attributes: protocol, host, port, and file");
              try{URL resource = new URL(param[0], param[1], Integer.parseInt(param[2]), param[3]);
              InputStream openResource = resource.openStream();
              //StringBuffer sb = new StringBuffer(param[3]);
              //sb.deleteCharAt(0);
              //String fileName = sb.toString();
              //System.out.println(fileName);
              FileOutputStream toFile = new FileOutputStream(param[3]);
              for(int i = openResource.read(); i!=-1; i = openResource.read())
              toFile.write(i);
              catch(IOException ioe){System.out.println("an ioe occurs");}
              System.out.println("file downloaded");
}java Test http www.xxx.com 80 /file.bla
when I tried the program, it shows me the file is successfully downloaded, but I cant see the file, afterwards I realise the '/' character is not allowed in the Windows Xp.
but why doesn't the program throw an IO exception? if so, the file must exist in some way, do you know where??
thanks

Answer 1

Or better yet, create a File object with the String argument and use that File to open the stream with. Then print File.getAbsolutePath() to determine where it was written.