Crawler has trouble logging in.

I am trying to make a program that crawls the front page of a site and gets stats like number of comments on each post, how long it took a post to get to front page, upvotes, etc.
I'm having a little trouble finding out how to login/navigate correctly.

When I pass it real login credentials, it doesn't print anything to console, however, when I pass fake credentials I get the HTML of the login page. To me, this means that the code is logging in correctly, but I can't quite tell.

My biggest question is after the program logs in, how do I direct it to the front page?

Code :

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public static void connect(String queryString1, String queryString2) throws IOException
	{
	// Create query string
 
	String queryString = "user=" + URLEncoder.encode(queryString1, "UTF-8");
	queryString += "&passwd=" + URLEncoder.encode(queryString2, "UTF-8");
 
	// Make connection
 
	URL url = new URL("https://ssl.reddit.com/post/login");
	URLConnection urlConnection = url.openConnection();
	urlConnection.setDoOutput(true);
	OutputStreamWriter out = new OutputStreamWriter(
	   urlConnection.getOutputStream());
 
	// Write query string to request body
 
	out.write(queryString);
	out.flush();
 
	// Read the response
	BufferedReader in = new BufferedReader(
	   new InputStreamReader(urlConnection.getInputStream()));
	String line = null;
	while ((line = in.readLine()) != null)
	{
	   System.out.println(line);
	}
 
 
}

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