修飾子とタイプ | メソッドと説明 |
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String |
getFirst(String key)
キーに紐づく値の配列のうち最初の要素を返却します。
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clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values
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