回答編集履歴
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answer
CHANGED
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@@ -13,4 +13,16 @@
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13
13
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e.printStackTrace();
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14
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}
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}
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16
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```
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17
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BufferedReader#lines()を使えばStreamになってもっと簡単に書けます。
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18
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```java
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19
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public static void main(String[] args) {
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try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
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21
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int num = Integer.parseInt(br.nextLine());
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String s = br.lines().limit(num).collect(Collectors.joining(",", "Hello ", "."));
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23
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System.out.println(s);
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} catch (IOException e) {
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e.printStackTrace();
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}
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27
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}
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16
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```
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