回答編集履歴
3
追記
test
CHANGED
@@ -59,3 +59,59 @@
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59
59
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}
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60
60
|
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61
61
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```
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62
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+
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63
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+
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64
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+
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65
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+
このままコンパイルがとおるコード
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66
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+
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67
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+
---
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68
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+
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69
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+
```Java
|
70
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+
|
71
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+
import java.util.Scanner;
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72
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+
|
73
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+
|
74
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+
|
75
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+
class Main {
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76
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+
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77
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+
static int inputNum(String message, Scanner sc) {
|
78
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+
|
79
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+
while(true) {
|
80
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+
|
81
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+
System.out.println(message);
|
82
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+
|
83
|
+
try {
|
84
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+
|
85
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+
int ret = Integer.parseInt(sc.nextLine());
|
86
|
+
|
87
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+
if(0 < ret && ret <= 10) {
|
88
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+
|
89
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+
return ret;
|
90
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+
|
91
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+
}
|
92
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+
|
93
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+
}
|
94
|
+
|
95
|
+
catch(NumberFormatException e) {}
|
96
|
+
|
97
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+
}
|
98
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+
|
99
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+
}
|
100
|
+
|
101
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+
|
102
|
+
|
103
|
+
public static void main(String[] args) {
|
104
|
+
|
105
|
+
try(Scanner sc = new Scanner(System.in)) {
|
106
|
+
|
107
|
+
int num = inputNum("1~10の数を入れてね", sc);
|
108
|
+
|
109
|
+
System.out.println("入力された数: " + num);
|
110
|
+
|
111
|
+
}
|
112
|
+
|
113
|
+
}
|
114
|
+
|
115
|
+
}
|
116
|
+
|
117
|
+
```
|
2
修正
test
CHANGED
@@ -3,10 +3,6 @@
|
|
3
3
|
```Java
|
4
4
|
|
5
5
|
static int inputNum(String message, Scanner sc) {
|
6
|
-
|
7
|
-
int ret;
|
8
|
-
|
9
|
-
|
10
6
|
|
11
7
|
while(true) {
|
12
8
|
|
@@ -14,19 +10,17 @@
|
|
14
10
|
|
15
11
|
try {
|
16
12
|
|
17
|
-
ret = Integer.parseInt(sc.nextLine());
|
13
|
+
int ret = Integer.parseInt(sc.nextLine());
|
14
|
+
|
15
|
+
if(0 < ret && ret <= 10) {
|
16
|
+
|
17
|
+
return ret;
|
18
|
+
|
19
|
+
}
|
18
20
|
|
19
21
|
}
|
20
22
|
|
21
|
-
catch(NumberFormatException e) {
|
23
|
+
catch(NumberFormatException e) {}
|
22
|
-
|
23
|
-
continue;
|
24
|
-
|
25
|
-
}
|
26
|
-
|
27
|
-
|
28
|
-
|
29
|
-
if(0 < ret && ret <= 10) return ret;
|
30
24
|
|
31
25
|
}
|
32
26
|
|
1
再帰
test
CHANGED
@@ -33,3 +33,35 @@
|
|
33
33
|
}
|
34
34
|
|
35
35
|
```
|
36
|
+
|
37
|
+
|
38
|
+
|
39
|
+
再帰バージョン。
|
40
|
+
|
41
|
+
```Java
|
42
|
+
|
43
|
+
static int inputNumRecursive(String message, Scanner sc) {
|
44
|
+
|
45
|
+
System.out.println(message);
|
46
|
+
|
47
|
+
try {
|
48
|
+
|
49
|
+
int ret = Integer.parseInt(sc.nextLine());
|
50
|
+
|
51
|
+
if(0 < ret && ret <= 10) {
|
52
|
+
|
53
|
+
return ret;
|
54
|
+
|
55
|
+
}
|
56
|
+
|
57
|
+
}
|
58
|
+
|
59
|
+
catch(NumberFormatException e) {}
|
60
|
+
|
61
|
+
|
62
|
+
|
63
|
+
return inputNumRecursive(message, sc);
|
64
|
+
|
65
|
+
}
|
66
|
+
|
67
|
+
```
|