回答編集履歴
1
setWidthが使えなかったので訂正
test
CHANGED
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@@ -2,4 +2,12 @@
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2
2
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3
3
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[https://docs.oracle.com/javase/jp/8/javafx/api/javafx/scene/control/TextArea.html](https://docs.oracle.com/javase/jp/8/javafx/api/javafx/scene/control/TextArea.html)
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4
4
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5
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-
[https://docs.oracle.com/javase/jp/8/javafx/api/javafx/scene/layout/Region.html#setWidth-double-](https://docs.oracle.com/javase/jp/8/javafx/api/javafx/scene/layout/Region.html#setWidth-double-)
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5
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[~~https://docs.oracle.com/javase/jp/8/javafx/api/javafx/scene/layout/Region.html#setWidth-double-~~](https://docs.oracle.com/javase/jp/8/javafx/api/javafx/scene/layout/Region.html#setWidth-double-)
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6
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+
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7
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+
[https://docs.oracle.com/javase/jp/8/javafx/api/javafx/scene/control/TextArea.html#setPrefColumnCount-int-](https://docs.oracle.com/javase/jp/8/javafx/api/javafx/scene/control/TextArea.html#setPrefColumnCount-int-)
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8
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+
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9
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+
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10
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+
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11
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ただ、Labelなどのような設定ではなさそうなので、TextAreaを置いたPane系でサイズ指定して、
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12
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+
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13
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+
そのPane系を基盤のPaneに置くのが良い気がします。
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