Android : Verify if user is logged in or not, issues using Intent in Android

I am attempting to verify if a user is logged in or not, and if not sending them to a log in page. I am using the log in page template from Android Dev. and trying to use an Intent to send either a Boolean or a value ( 1 for logged in 0 for not). Here is the part of the code in LoginActivity with the Intent:

for (String credential : DUMMY_CREDENTIALS) {
            String[] pieces = credential.split(":");
            if (pieces[0].equals(mEmail)) {
                // Account exists, return true if the password matches.
                return pieces[1].equals(mPassword);
 final boolean logged_in = true;
                Intent intent = new Intent(LoginActivity.this, MainActivity.class); 
            intent.putExtra("log", logged_in); 
            startActivity(intent);
            }

here I am trying as a Boolean and I am getting the error Unreachable code for the line with final boolean Logged_in = true. When I try as an int

int logged_in =1;

I get the same error. All the questions asked on SO state that I needed to use the current class, LoginActivity.this, instead of just this. When I did use just this, I got another error entirely. How do I send a value to my MainActivity class to show whether they are logged in or not?