This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)


displays the Java console window and begins capturing output sent to the Java System.out and System.err streams.
captures only System.out.
captures only System.err.
  • 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.