我設法創建了一個簡單的猜謎游戲（這很好用），唯一的問題是我似乎無法刷新我一開始生成的隨機數。（當他們猜對了數字時）import java.util.Random;public class MainActivity extends AppCompatActivity {private TextView hint;private Button enterGuess;private EditText chosenNumber;Random rand = new Random();int secretNumber = rand.nextInt(99) + 1;@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    enterGuess = findViewById(R.id.buttonEnter);    chosenNumber = findViewById(R.id.etEnterNumber);    hint = findViewById(R.id.tvHint);    final String hintHigh = "Guess Higher";    final String hintLow = "Guess Lower";    final String correctGuess = "Correct! Guess the new number!";    enterGuess.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {            int number = Integer.parseInt(chosenNumber.getText().toString());            if (number < secretNumber){                hint.setText(hintHigh);            }            else if (number > secretNumber) {                hint.setText(hintLow);            }            else {                hint.setText(correctGuess);                Random rand = new Random();                int secretNumber = rand.nextInt(99) + 1;            }        }    });}}