質問編集履歴
3
コードの追加
test
CHANGED
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File without changes
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test
CHANGED
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@@ -147,3 +147,13 @@
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147
147
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editor.commit();
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148
148
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149
149
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```
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150
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+
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151
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+
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152
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+
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153
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+
```Java
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154
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+
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155
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+
MainActivity main = new MainActivity();
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156
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+
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157
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+
main.loadFile();
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158
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+
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159
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+
```
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2
コードの追加
test
CHANGED
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File without changes
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test
CHANGED
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@@ -4,6 +4,146 @@
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4
4
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5
5
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```java
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6
6
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7
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+
Realm realm = Realm.getDefaultInstance();
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8
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+
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9
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+
//リセット
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10
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+
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11
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RealmQuery<DataModel> query = realm.where(DataModel.class);
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12
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+
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13
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RealmResults<DataModel> result = query.findAll();
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14
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+
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15
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realm.beginTransaction();
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16
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+
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17
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result.deleteAllFromRealm();
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18
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+
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19
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realm.commitTransaction();
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20
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+
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21
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+
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22
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+
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23
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+
InputStream is = null;
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24
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+
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25
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BufferedReader br = null;
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26
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+
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27
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+
int times = 1;
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28
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+
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29
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+
try {
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30
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+
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31
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try {
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32
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+
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33
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+
is = this.getAssets().open("data.txt");
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34
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+
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35
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+
br = new BufferedReader(new InputStreamReader(is));
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36
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+
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37
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String str;
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38
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+
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39
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+
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40
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+
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41
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+
String wordEnTemp = null;
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42
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+
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43
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+
String wordJpTemp = null;
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44
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+
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45
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+
String sentenceEnTemp = null;
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46
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+
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47
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+
String sentenceJpTemp = null;
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48
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+
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49
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+
int indexTemp = 0;
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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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53
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+
while ((str = br.readLine()) != null) {
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54
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+
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55
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+
switch (times%4){
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56
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+
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57
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+
case 1:
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58
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+
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59
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+
//単語
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60
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+
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61
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+
wordEnTemp = str;
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62
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+
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63
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+
break;
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64
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+
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65
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+
case 2:
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66
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+
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67
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//和訳
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68
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+
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69
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wordJpTemp = str;
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70
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+
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71
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+
break;
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72
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+
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73
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+
case 3:
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74
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+
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75
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+
//例文
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76
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+
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77
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+
sentenceEnTemp = str;
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78
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+
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79
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+
break;
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80
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+
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81
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+
case 0:
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82
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+
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83
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+
//和訳
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84
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+
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85
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+
sentenceJpTemp = str;
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86
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+
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87
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+
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88
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+
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89
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+
//データ保存
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90
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+
|
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91
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+
realm.beginTransaction();
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92
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+
|
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93
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+
DataModel model=realm.createObject(DataModel.class);
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94
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+
|
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95
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+
model.setIndex(indexTemp);
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96
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+
|
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97
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+
model.setWordEn(wordEnTemp);
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98
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+
|
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99
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+
model.setWordJp(wordJpTemp);
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100
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+
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101
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+
model.setSentenceEn(sentenceEnTemp);
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102
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+
|
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103
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+
model.setSentenceJp(sentenceJpTemp);
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104
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+
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105
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+
model.setProgressWord(0);
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106
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+
|
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107
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+
model.setProgressSpelling(0);
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108
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+
|
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109
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+
model.setTimeWord(0);
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110
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+
|
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111
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+
model.setTimeSpelling(0);
|
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112
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+
|
|
113
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+
realm.commitTransaction();
|
|
114
|
+
|
|
115
|
+
|
|
116
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+
|
|
117
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+
indexTemp++;
|
|
118
|
+
|
|
119
|
+
break;
|
|
120
|
+
|
|
121
|
+
}
|
|
122
|
+
|
|
123
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+
times++;
|
|
124
|
+
|
|
125
|
+
}
|
|
126
|
+
|
|
127
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+
} finally {
|
|
128
|
+
|
|
129
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+
if (is != null) is.close();
|
|
130
|
+
|
|
131
|
+
if (br != null) br.close();
|
|
132
|
+
|
|
133
|
+
}
|
|
134
|
+
|
|
135
|
+
} catch (Exception e){
|
|
136
|
+
|
|
137
|
+
}
|
|
138
|
+
|
|
139
|
+
//完了
|
|
140
|
+
|
|
7
|
-
SharedPreferences preferences = getSharedPreferences("data",MODE_PRIVATE);
|
|
141
|
+
SharedPreferences preferences = getSharedPreferences("data",MODE_PRIVATE);
|
|
142
|
+
|
|
143
|
+
SharedPreferences.Editor editor = preferences.edit();
|
|
144
|
+
|
|
145
|
+
editor.putInt("count",1);
|
|
146
|
+
|
|
147
|
+
editor.commit();
|
|
8
148
|
|
|
9
149
|
```
|
1
コードの追加
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -1 +1,9 @@
|
|
|
1
1
|
MainActivityのメソッドをほかのアクティビティーから呼び出すためにインスタンスを生成して実行したのですが、「SharedPreferences」を使っている部分で「java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.SharedPreferences android.content.Context.getSharedPreferences(java.lang.String, int)' on a null object reference」というエラーが出てしまいます。
|
|
2
|
+
|
|
3
|
+
|
|
4
|
+
|
|
5
|
+
```java
|
|
6
|
+
|
|
7
|
+
SharedPreferences preferences = getSharedPreferences("data",MODE_PRIVATE);
|
|
8
|
+
|
|
9
|
+
```
|