i keep getting an error: "testapp has stopped" when i go from Main2Activity.java to Main3Activity.java

Question

I am quite new to coding and I am not that quite knowledgeable in debugging process.

As for now, this is all the information that I would be able to give, I hope someone has encountered and has a solution for this kind of problem.

Code for Main2Activity:

MediaPlayer bmusic;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main2);

    bmusic = MediaPlayer.create(Main2Activity.this,R.raw.bmapp);
    bmusic.setLooping(true);
    bmusic.start();

    button = findViewById(R.id.button);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(Main2Activity.this, Main3Activity.class);
            startActivity(intent);

        }
    });
}

@Override
protected void onPause() {
    super.onPause();
    bmusic.release();
    finish();
}

Main2Activity is pretty much okay but once I click the start game button which would direct me to Main3Activity, an error pops up saying "testapp(my app name) has stopped.

Code for Main3Acitivty:

Button b_continue;

TextView tv_question;

EditText et_answer1;

List<Item> questions;

int curQuestion = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main3);

    b_continue = findViewById(R.id.b_continue);
    tv_question =  findViewById(R.id.tv_question);
    et_answer1 = findViewById(R.id.et_answer1);

    b_continue.setVisibility(View.INVISIBLE);

    questions = new ArrayList<>();
    //add all questions and answers to the game
    for (int i  = 0; 1 < Database.questions.length; i++){
        questions.add(new Item(Database.questions[i], Database.answers[i]));
    }

    //shuffle the questions
    Collections.shuffle(questions);

    tv_question.setText(questions.get(curQuestion).getQuestion());

    et_answer1.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            //check if the answer is right
            if(et_answer1.getText().toString().equalsIgnoreCase(questions.get(curQuestion).getAnswer())){
                b_continue.setVisibility(View.VISIBLE);
            } else {
                b_continue.setVisibility(View.INVISIBLE);
            }
        }

        @Override
        public void afterTextChanged(Editable s) {

        }
    });

    b_continue.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (curQuestion < (Database.questions.length - 1)) {
                //next question
                curQuestion++;
                tv_question.setText(questions.get(curQuestion).getQuestion());
                b_continue.setVisibility(View.INVISIBLE);
                et_answer1.setText("");
            } else {
                //no more questions - game over
                Toast.makeText(Main3Activity.this, "You won the game!", Toast.LENGTH_SHORT).show();
                finish();
            }
        }
    });
}

have you registered your activity in manifest? – Nagendra Hari Karthick Dec 10 '18 at 12:31 — Nagendra Hari Karthick, Dec 10 '18 at 12:31
post your error log here – Vinesh Chauhan Dec 10 '18 at 12:33 — Vinesh Chauhan, Dec 10 '18 at 12:33
provide error log so that people can debug – touhid udoy Dec 10 '18 at 12:37 — touhid udoy, Dec 10 '18 at 12:37

score 0 · Accepted Answer · answered Dec 10 '18 at 12:48

0

Declare activity in AndroidManifest.xml

Like that

<activity android:name=".Main3Activity" />

Note: If implicit error.

answered Dec 10 '18 at 12:48

Engr Waseem Arain

1,163
1
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36

Thanks, case solved. I forgot to put "3" when i copied .MainActivity when declaring for .Main3Activity. – Hachiko T Dec 10 '18 at 13:18
great, my pleasure – Engr Waseem Arain Dec 10 '18 at 13:24
If help my answer, Kindly accept my answer and up vote, thanks – Engr Waseem Arain Dec 11 '18 at 06:53

i keep getting an error: "testapp has stopped" when i go from Main2Activity.java to Main3Activity.java

1 Answers1