Question

我正在尝试编写宾果游戏代码。我想产生70个随机数字，每4秒更改一次。

我创建了一个countdowntimer并通过在countdowntimer的finish部分中定义一个可运行项，在4秒内创建了一个随机数。但是这些随机数可能互不相同。

Handler handler;
Runnable run;

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

    Random random = new Random();
    int i = random.nextInt(70);

    Random random2 = new Random();
    int z = random2.nextInt(70);
    int y =random2.nextInt(70);
    int x =random2.nextInt(70);
    int w =random2.nextInt(70);
    int q =random2.nextInt(70);
    int v =random2.nextInt(70);
    int m =random2.nextInt(70);
    int n =random2.nextInt(70);
    int l =random2.nextInt(70);


    final TextView textView3 = (TextView) findViewById(R.id.textView3);
    final TextView textView4 = (TextView) findViewById(R.id.textView4);
    final TextView textView5 = (TextView) findViewById(R.id.textView5);
    final TextView textView6 = (TextView) findViewById(R.id.textView6);
    final TextView textView7 = (TextView) findViewById(R.id.textView7);
    final TextView textView8 = (TextView) findViewById(R.id.textView8);
    final TextView textView9 = (TextView) findViewById(R.id.textView9);
    final TextView textView10 = (TextView) findViewById(R.id.textView10);



    final TextView textView2 = (TextView) findViewById(R.id.textView2);
    textView2.setText("Lucky number: " + i);

    final int a = Integer.parseInt(textView3.getText().toString());
    final int b = Integer.parseInt(textView4.getText().toString());
    final int c = Integer.parseInt(textView5.getText().toString());
    final int d = Integer.parseInt(textView6.getText().toString());
    final int e = Integer.parseInt(textView7.getText().toString());
    final int f = Integer.parseInt(textView8.getText().toString());
    final int g = Integer.parseInt(textView9.getText().toString());
    final int h = Integer.parseInt(textView10.getText().toString());

    textView9.setText("" + z);
    textView10.setText(" "+ y);
    textView8.setText(" "+ x);
    textView7.setText(" "+ w);
    textView6.setText(" "+ q);
    textView5.setText(" "+ l);
    textView4.setText(" "+ m);
    textView3.setText(" "+ n);


          CountDownTimer ct0 = new CountDownTimer(60000, 1000) {


        @Override
        public void onTick(long millisUntilFinished) {


            TextView textView = (TextView) findViewById(R.id.textView);
            textView.setText("Remaining time: " + millisUntilFinished / 1000);

        }

        @Override
        public void onFinish() {


        }
    }.start();

    CountDownTimer ct1 = new CountDownTimer(4000, 1000) {


        @Override
        public void onTick(long millisUntilFinished) {

        }

        @Override
        public void onFinish() {


            handler = new Handler();
            run = new Runnable() {
                @Override
                public void run() {

                    int[] numbers = new int[70];
                    Random random = new Random();
                    int i = random.nextInt(70);

                    TextView textView2 = (TextView) findViewById(R.id.textView2);
                    textView2.setText("Lucky number: " + i);

                    if ( i == a) {

                        textView3.setText("ok");
                    } else if (i == b) {
                        textView4.setText("ok");
                    } else if (i == c) {

                        textView5.setText("ok");
                    } else if (i == d) {
                        textView6.setText("ok");

                    } else if (i == e) {
                        textView7.setText("ok");
                    } else if(i == f) {
                        textView8.setText("ok");
                    } else if (i == g) {
                        textView9.setText("ok");
                    } else if (i == h) {
                        textView10.setText("ok");
                    }



                    handler.postDelayed(this, 4000);

                }
            };

            handler.post(run);



            }
        }.

        start();

}

对于60秒，我想每4秒创建70个不同的数字，并将这些数字与其他8个变量进行匹配。如果您能提供帮助，我将不胜感激。谢谢。

Answer 1

为了避免您在说什么，我可以给您一种方法：

但是这些随机数可能互不相同。

这很明显，因为您无法控制它。

我想创建一个大小为70的Set<Integer>，因此您可以通过简单的for循环来填充此数组。

for (int i = 0; i<70; i++) yourSetList.add(i);

然后，“模拟”宾果游戏的一种好方法是重新排列列表，因此您可以使用 Collections shuffle

然后，您可以生成如下所示的随机变量：

Random random = new Random();   
int random = random.nextInt(yourSetList.size()) + 1;

然后使用随机数作为索引

yourSetList.get(random);

请确保将其从列表中删除，以避免出现最初的问题

yourSetList.remove(random);

如何在4秒钟内定期生成不同的随机数？

1 个答案: