displays the Java console window and begins capturing output sent to the Java System.out and System.err streams.
ShowJavaConsole["stdout"]
captures only System.out.
ShowJavaConsole["stederr"]
captures only System.err.


ShowJavaConsole
displays the Java console window and begins capturing output sent to the Java System.out and System.err streams.
ShowJavaConsole["stdout"]
captures only System.out.
ShowJavaConsole["stederr"]
captures only System.err.
Details and Options
- To use ShowJavaConsole, you first need to load J/Link using Needs["JLink`"].
- Anything written to these streams before ShowJavaConsole is first called will not appear, but subsequent output will be captured even if the window is closed and reopened.
- Only the most recent 1000 lines of output are displayed.
See Also
Related Guides
Text
Wolfram Research (2007), ShowJavaConsole, Wolfram Language function, https://reference.wolfram.com/language/JLink/ref/ShowJavaConsole.html.
CMS
Wolfram Language. 2007. "ShowJavaConsole." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/JLink/ref/ShowJavaConsole.html.
APA
Wolfram Language. (2007). ShowJavaConsole. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/JLink/ref/ShowJavaConsole.html
BibTeX
@misc{reference.wolfram_2025_showjavaconsole, author="Wolfram Research", title="{ShowJavaConsole}", year="2007", howpublished="\url{https://reference.wolfram.com/language/JLink/ref/ShowJavaConsole.html}", note=[Accessed: 15-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_showjavaconsole, organization={Wolfram Research}, title={ShowJavaConsole}, year={2007}, url={https://reference.wolfram.com/language/JLink/ref/ShowJavaConsole.html}, note=[Accessed: 15-August-2025]}