回答編集履歴
2
一部復元
test
CHANGED
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@@ -19,6 +19,10 @@
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なぜなのか？
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---
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ローカル変数の宣言文は、ブロック内に置かなければならないのです。
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- [IfThenStatement](https://docs.oracle.com/javase/specs/jls/se9/html/jls-14.html#jls-14.9)
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1
追記
test
CHANGED
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@@ -20,6 +20,76 @@
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---
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-
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- [IfThenStatement](https://docs.oracle.com/javase/specs/jls/se9/html/jls-14.html#jls-14.9)
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> ```
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IfThenStatement:
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if ( Expression ) Statement
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> ```
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- [Statement](https://docs.oracle.com/javase/specs/jls/se9/html/jls-14.html#jls-Statement)
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> ```
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Statement:
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StatementWithoutTrailingSubstatement
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> ```
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- [StatementWithoutTrailingSubstatement](https://docs.oracle.com/javase/specs/jls/se9/html/jls-14.html#jls-StatementWithoutTrailingSubstatement)
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> ```
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StatementWithoutTrailingSubstatement:
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Block
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> ```
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- [Block](https://docs.oracle.com/javase/specs/jls/se9/html/jls-14.html#jls-Block)
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> ```
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Block:
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{ [BlockStatements] }
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> ```
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- [BlockStatements](https://docs.oracle.com/javase/specs/jls/se9/html/jls-14.html#jls-BlockStatements)
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> ```
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BlockStatements:
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76
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25
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-
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BlockStatement {BlockStatement}
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> ```
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- [BlockStatement](https://docs.oracle.com/javase/specs/jls/se9/html/jls-14.html#jls-BlockStatement)
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84
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> ```
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86
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BlockStatement:
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LocalVariableDeclarationStatement
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> ```
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95
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どうやらこれがif文から宣言文までの最短ルートであるようです。
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