回答編集履歴
1
変な改行を削除
test
CHANGED
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@@ -6,9 +6,7 @@
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6
6
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7
7
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try (Stream<String> stream = Files.lines(Paths.get(txtFileName))) {
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8
8
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9
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-
Map<Integer,
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10
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-
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11
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-
List<String>> map = stream.collect(Collectors.groupingBy(s -> s.length()))
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9
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+
Map<Integer, List<String>> map = stream.collect(Collectors.groupingBy(s -> s.length()))
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12
10
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13
11
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14
12
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