JLink`
JLink`

JavaObjectQ

JavaObjectQ[expr]

expr がJavaオブジェクトの有効な参照あるいはNullならばTrueを，それ以外の場合はFalseを返す．

詳細とオプション

  • JavaObjectQを使うためには，まず J/Link をロードしなくてはならない．それにはNeeds["JLink`"]を実行する必要がある．
Wolfram Research (2007), JavaObjectQ, Wolfram言語関数， https://reference.wolfram.com/language/JLink/ref/JavaObjectQ.html.

テキスト

Wolfram Research (2007), JavaObjectQ, Wolfram言語関数， https://reference.wolfram.com/language/JLink/ref/JavaObjectQ.html.

CMS

Wolfram Language. 2007. "JavaObjectQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/JLink/ref/JavaObjectQ.html.

APA

Wolfram Language. (2007). JavaObjectQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/JLink/ref/JavaObjectQ.html

BibTeX

@misc{reference.wolfram_2024_javaobjectq, author="Wolfram Research", title="{JavaObjectQ}", year="2007", howpublished="\url{https://reference.wolfram.com/language/JLink/ref/JavaObjectQ.html}", note=[Accessed: 22-December-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_javaobjectq, organization={Wolfram Research}, title={JavaObjectQ}, year={2007}, url={https://reference.wolfram.com/language/JLink/ref/JavaObjectQ.html}, note=[Accessed: 22-December-2024 ]}