HTTPS URL Connection program in Java

import java.io.*; import java.net.*; import java.security.Security.*; import com.sun.net.ssl.*; import com.sun.*; public class sslpost { public static void main(String[] args){ String cuki=new String(); try { System.setProperty("java.protocol.handler.pkgs", "com.sun.net.ssl.internal.www.protocol"); java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider()); URL url = new URL("https://www.sunpage.com.sg/sso/login.asp"); HttpsURLConnection connection = (HttpsURLConnection) url.openConnection(); connection.setDoInput(true); connection.setDoOutput(true); connection.setRequestMethod("POST"); connection.setFollowRedirects(true); String query = "UserID=" + URLEncoder.encode("williamalex@hotmail.com"); query += "&"; query += "password=" + URLEncoder.encode("password"); query += "&"; query += "UserChk=" + URLEncoder.encode("Bidder"); // This particular website I was working with, required that the referrel URL should be from this URL // as specified the previousURL. If you do not have such requirement you may omit it. query += "&"; query += "PreviousURL=" + URLEncoder.encode("https://www.sunpage.com.sg/sso/login.asp"); //connection.setRequestProperty("Accept-Language","it"); //connection.setRequestProperty("Accept", "application/cfm, image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, ///"); //connection.setRequestProperty("Accept-Encoding","gzip"); connection.setRequestProperty("Content-length",String.valueOf (query.length())); connection.setRequestProperty("Content-Type","application/x-www- form-urlencoded"); connection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows 98; DigExt)"); // open up the output stream of the connection DataOutputStream output = new DataOutputStream( connection.getOutputStream() ); // write out the data int queryLength = query.length(); output.writeBytes( query ); //output.close(); System.out.println("Resp Code:"+connection.getResponseCode()); System.out.println("Resp Message:"+ connection.getResponseMessage()); // get ready to read the response from the cgi script DataInputStream input = new DataInputStream( connection.getInputStream() ); // read in each character until end-of-stream is detected for( int c = input.read(); c != -1; c = input.read() ) System.out.print( (char)c ); input.close(); } catch(Exception e) { System.out.println( "Something bad just happened." ); System.out.println( e ); e.printStackTrace(); } } }