how to add counter in android studio to quit an application

Question

I am getting an error when I set the counter to subtract and close the application. I get an error "cannot assign value to final variable counter". If the user logins in 3 times with no success quit the application.

        final int counter = 3;

        //Set the OKButton to accept onClick
        OKButton.setOnClickListener(new View.OnClickListener() {
            @Override

            //once onClick is initalized it takes user to page menu
            public void onClick(View v) {

                //display text that was inputed for userText and passText
                user = userText.getText().toString();
                pass = passText.getText().toString();

                //create if loop which checks if user and pass equals the credentials
                if (user.equals("pshivam") && pass.equals("Bway.857661")) {

                    //display toast access welcome
                    String welcome = "Access Granted.";

                    //Create a Toast to display the welcome string in the MainActivity.
                    Toast.makeText(MainActivity.this, welcome, Toast.LENGTH_SHORT).show();
                    setContentView(R.layout.account_main);
                }
                //create else if loop which checks if user or pass does not equals the credentials
                else if (!user.equals("pshivam") || !pass.equals("Bway.857661")){

                    //displays previous entry
                    userText.setText(user);
                    passText.setText(pass);

                    //allows user to re-enter credentials.
                    user = userText.getText().toString();
                    pass = passText.getText().toString();


                    //display toast access fail
                    String fail = "Access Denied! Please Try again.";
                    //Create a Toast to display the fail string in the MainActivity.
                    Toast.makeText(MainActivity.this, fail, Toast.LENGTH_SHORT).show();
                    counter--;
                    if(counter == 0){
                        finish();
                    }
                }
            }
        });
    }
}

Answer 1

Do something like this :

OKButton.setOnClickListener(new View.OnClickListener() {
            int counter = 3;
            @Override
            //once onClick is initalized it takes user to page menu
            public void onClick(View v) {

You can also call a function from inside onClick which will decrement the variable, or use a static field declared in your class

This How to increment a Counter inside an OnClick View Event and How do I use onClickListener to count the number of times a button is pressed? might help.

Edit:

What you are doing in else part doesn't make sense. You are setting text for userText and passText that you just got using getText() from these. Then you are storing these same values to user and pass. But you aren't using these variables anywhere and they get new values when onClick is called again. Why not keep it simple :

                else {

                    //display toast access fail
                    String fail = "Access Denied! Please Try again.";
                    //Create a Toast to display the fail string in the MainActivity.
                    Toast.makeText(MainActivity.this, fail, Toast.LENGTH_SHORT).show();
                    counter--;
                    if(counter == 0){
                        finish();
                    }
                }