質問編集履歴
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コード編集
title
CHANGED
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File without changes
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body
CHANGED
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@@ -1,23 +1,39 @@
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1
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-
タイトル通り現在String qを r = new Random().nextInt(q.length);
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1
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タイトル通り現在AndroidStudioでString qを r = new Random().nextInt(q.length);
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2
2
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((TextView) findViewById(R.id.situmon)).setText(q[r]);
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3
3
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でランダムに表示させているのですがこれだと同じ問題が何回も表示されます。なのでこの質問qを乱数で表示させつつ兆宇服させない方法を教えてもらえると幸いです。お願いいたします。
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4
4
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```ここに言語を入力
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5
5
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コード
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6
6
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public class shindan extends AppCompatActivity {
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7
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+
String[] q = {
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8
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"質問１",
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9
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"質問２",
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10
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"質問３",
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11
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"質問４",
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12
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"質問５"
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13
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"質問６",
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14
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"質問７",
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15
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"質問８",
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16
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"質問９",
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7
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-
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17
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"質問10",
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8
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-
"
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18
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+
"質問11"
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9
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-
};
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19
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};
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10
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String[] ta = {
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20
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String[] ta = {//回答
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11
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-
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21
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"１","２","３","４","５","６","７","８","９","１０","１１"
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12
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};//+
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13
23
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14
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-
String[] ba = {
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24
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String[] ba = {//回答
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15
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-
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25
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"１","２","３","４","５","６","７","８","９","１０","１１"
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16
26
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};//－
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17
27
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18
28
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int r = 0;//乱数の保管
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19
29
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int count = 10;//問題数
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30
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+
int score=0;//スコア
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20
31
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32
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+
int n = 11;
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33
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+
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34
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int[] indexes = getShuffledIndexes(n);
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35
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+
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36
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+
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21
37
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@Override
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22
38
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protected void onCreate(Bundle savedInstanceState) {
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23
39
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super.onCreate(savedInstanceState);
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@@ -28,47 +44,32 @@
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28
44
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displayTop();
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29
45
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displayBottom();
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30
46
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31
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-
}
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32
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-
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33
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-
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34
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-
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47
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+
for (int i = 0; i < n - 1; i++) {
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35
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-
if (r == 0) {
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36
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-
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48
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System.out.print(indexes[i] + ", ");
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37
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-
}else if (r==1){
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38
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((TextView) findViewById(R.id.top)).setText(ta[1]);
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39
49
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}
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50
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System.out.println(indexes[n - 1]);
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40
51
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41
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-
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42
52
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}
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43
53
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44
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-
public
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54
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public static int[] getShuffledIndexes(int n) {
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45
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-
if (
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55
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if (n <= 0) {
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46
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-
((TextView) findViewById(R.id.bottom)).setText(ba[0]);
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47
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-
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56
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return null;
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48
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-
((TextView) findViewById(R.id.bottom)).setText(ba[1]);
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49
57
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}
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50
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-
}
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51
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-
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52
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-
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58
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+
int[] indexes = new int[n];
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53
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-
count--;
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54
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-
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59
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for (int i = 0; i < n; i++) {
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55
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((TextView) findViewById(R.id.tc)).setText("のこり" + count + "問...");
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56
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-
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60
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+
indexes[i] = i;
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57
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-
r = new Random().nextInt(q.length);
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58
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-
((TextView) findViewById(R.id.situmon)).setText(q[r]);
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59
61
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}
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60
62
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61
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-
}
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62
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-
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63
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+
Random rand = new Random();
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63
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-
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64
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+
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64
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-
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65
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+
for (int i = n - 1; i >= 1; i--) {
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65
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-
((TextView) findViewById(R.id.tc)).setText("のこり" + count + "問...");
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66
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-
//出題
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67
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-
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66
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+
int j = rand.nextInt(i + 1);
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67
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int tmp = indexes[j];
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68
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-
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68
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indexes[j] = indexes[i];
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69
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-
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69
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+
indexes[i] = tmp;
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70
70
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}
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71
71
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72
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+
return indexes;
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72
73
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}
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73
74
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74
75
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```
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