Determine the Server Side MIME type information and Spawn an external viewer to display the file.

URLDownloader.java

import java.util.*;
import java.lang.*;
import java.io.*;
import java.net.*;
import java.awt.Desktop;

//Determine the Server Side MIME type information and Spawn an external viewer to display the file.
public class URLDownloader{
	public static void main (String[] args){
    URL u = null;
    File f = null;
    try{
      u = new URL("http://www.bbc.co.uk/accessibility/guides/");
      HttpURLConnection http = (HttpURLConnection) u.openConnection();

      //get MIME type of the http connection
      String MIMEtype = http.getContentType();
      System.out.println("MIME type of the content : "+MIMEtype);
      //read by input stream
      InputStream raw = http.getInputStream();

      //procedure to download a file
      String filename = "output.html";
      String savedir = "/Users/Sumit/Desktop/";
      String saveFilePath = savedir +"/"+ filename;
      //create a new file
      f = new File(saveFilePath);
      //open the File output stream on the file
      FileOutputStream out = new FileOutputStream(saveFilePath);
      //get the number of bytes available to read
      int bytesAvailable = raw.available();
      //create a buffer input byte array
      byte[] input = new byte[bytesAvailable];
      int bytesRead = bytesAvailable;
      while((bytesRead = raw.read(input)) != -1){
        out.write(input, 0, bytesRead);
      }
      //close the streams
      out.close();
      raw.close();

      //opening the downloaded file using default app based on the content-type
      System.out.println("Opening the downloaded file...\n");
      if(f.exists()){
        Desktop.getDesktop().open(f);
      }else{
        System.out.println("File not available");
      }
    }catch (MalformedURLException ex){
      System.err.println(ex);
    }catch (IOException ex){
      System.err.println(ex);
    }
	}
}