View difference between Paste ID: 5BPi5FAL and

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+import java.net.*;
 import java.io.*;
 
 public class LoginToMission {
 
     private static URL URLObj;
     private static URLConnection connect;
     private static String sessid = "";
 
     public static void main() {
         try {
             URLObj = new URL("http://www.hackthissite.org/user/login");
             connect = URLObj.openConnection();
             connect.setDoOutput(true);
             connect.addRequestProperty("Referer", "http://www.hackthissite.org");
             connect.addRequestProperty("User-agent", "User-Agent=Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13");
             connect.addRequestProperty("Keep-Alive", "115");
             connect.addRequestProperty("Connection", "keep-alive");
 
             connect.connect();
         }
         catch (MalformedURLException ex) {
             System.out.println("The URL specified was unable to be parsed or uses an invalid protocol. Please try again.");
             System.exit(1);
         }
         catch (Exception ex) {
             System.out.println("An exception occurred. " + ex.getMessage());
             System.exit(1);
         }
 
         try {
             BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(connect.getOutputStream()));
             writer.write("username=BrandonHeat&password=**********&btn_submit=Login");
             writer.close();
             sessid = connect.getHeaderFields().toString();
             sessid = sessid.substring(sessid.indexOf("Cookie=[") + 18, sessid.indexOf("; path=/]"));
 
             BufferedReader reader = new BufferedReader(new InputStreamReader(connect.getInputStream()));
 
             String lineRead = "";
 
             while ((lineRead = reader.readLine()) != null) {
                 System.out.println(lineRead);
             }
 
             reader.close();
         }
         catch (Exception ex) {
             System.out.println("There was an error reading or writing to the URL: " + ex.getMessage());
         }
         System.out.println(sessid);
 
 
         try {
 
             URLObj = new URL("http://www.hackthissite.org/missions/prog/2");
 
             connect = URLObj.openConnection();
 
             connect.addRequestProperty("Referer", "http://www.hackthissite.org/missions/programming");
             connect.addRequestProperty("User-agent", "User-Agent=Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13");
             connect.addRequestProperty("Keep-Alive", "115");
             connect.addRequestProperty("Connection", "keep-alive");
             connect.addRequestProperty("Cookie", "PHPSESSID="+sessid+";");
 
             connect.connect();
 
             String readline = "";
             String temp = "";
 
             BufferedReader reader = new BufferedReader(new InputStreamReader(connect.getInputStream()));
 
             while ((readline = reader.readLine())!=null) {
                 temp += readline;
             }
             System.out.println(temp);
             }
             catch (Exception ex) {
                  System.out.println("Exception thrown"  + ex.getMessage());
             }
     }
 
     public LoginToMission() {
         main();
     }
 
 }