Guides/jconsole

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Jconsole is the non-GUI interface to J. You type in sentences and J types the results. You have access to all the features of the J language.

Even if you use a GUI as your normal interface to J, you will occasionally need to use Jconsole to update the GUI itself.

To start Jconsole, either

  • use the desktop shortcut, if you installed one, or
  • navigate to your_J_installation_directory/bin/ and launch the Jconsole task

Unix jconsole uses editline. The input history from previous sessions is loaded from file ~/.jhistory (if it exists) when jconsole starts and the new input lines are added to the file on exit.

On windows, it is kept as a plain text file at jpath '~/config/inputlog.dat'.