Signing up accounts using Firebase

firebase-signup.java

public void signUp(View view) {
        EditText loginet=findViewById(R.id.email);
        EditText passwordet=findViewById(R.id.password);
        String email=loginet.getText().toString();
        String password=passwordet.getText().toString();
        mAuth.createUserWithEmailAndPassword(email, password)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        if (task.isSuccessful()) {
                            // Sign in success, update UI with the signed-in user's information
                            FirebaseUser user = mAuth.getCurrentUser();
                            Toast.makeText(getApplicationContext(),"Sign up successful.",Toast.LENGTH_LONG).show();
                            startActivity(new Intent(MainActivity.this,AddTask.class));
                        } else {
                            // If sign in fails, display a message to the user.
                            Toast.makeText(getApplicationContext(),"Sign up failed.",Toast.LENGTH_LONG).show();
                        }

                        // ...
                    }
                });
    }