### opdracht 2 ###

public class aView extends AppCompatActivity {
    
    ...

    public void onClick(View view){

        aModel m = new aModel(this);
        aController c = new aController(m);

        EditText username = (EditText)findViewById(R.id.etInlognaam);
        EditText password = (EditText)findViewById(R.id.etWachtwoord);
        String gebruiker = username.getText().toString();
        String ww = password.getText().toString();

        switch(view.getId()) {
            case R.id.registeren:
                c.registreren(m,gebruiker, ww);
                break;
            case R.id.inloggen:
                c.inloggen(m,gebruiker,ww);
                break;
            case R.id.tonen:
                c.tonen(m);
                break;
        }
    }

    ...

}