System/Installation/J9.5/Zips

These instructions are for J9.5 and show how to:

• get base system from a zip or tar.gz release package
• handle security issues - allow downloaded programs to run
• update base, addons, Jqt ide, and JE (jengine)
• create desktop launch icons for user interfaces: jconsole, JHS, and Jqt
• run and play a bit with each of the user interfaces

Following assumes you are installing J in your home folder. Installing in a protected folder requires extra privileges at one or more steps to enable writes and is for advanced users. Examples use Fred as your home folder.

Platform Specific Steps

Windows

click and Save File j9.5_win64.zip run Windows Explorer navigate to Downloads double click downloaded file - be sure to get latest (n) if more than one drag j9.5 folder and drop on C:\Users\Fred navigate to C:\Users\Fred\j9.5\bin double click jconsole.exe handle any Security Warning

macOS

click and Save File j9.5_mac64.zip run Finder navigate to Downloads double click downloaded file - be sure to get latest (n) if more than one drag j9.5 folder and drop on /Applications (or somewhere in Users/Fred if you prefer). You should move the folder out of Downloads, and avoid the Desktop, Documents or other protected folders that may prevent J from running, see Apple Platform Security navigate to new j9.5 folder control-click macos-fix.command (to get menu) click Open and authenticate as required navigate to bin folder double click jconsole to start J console task

Linux / FreeBSD / OpenBSD

you may need to do some of the following steps manually click appropriate file and Save File j9.5_linux64.tar.gz j9.5_fbsd64.tar.gz j9.5_obsd64.tar.gz run Finder/Windows Explorer equivalent navigate to Downloads double click downloaded file - be sure to get latest (n) if more than one drag j9.5 folder and drop on /home/Fred (or wherever you want to install) navigate to /home/Fred/j9.5 double click jconsole.sh - run jconsole in terminal

Raspberry Pi

you may need to do some or all of the following steps manually click one of the following and Save File j9.5_raspi64.tar.gz j9.5_raspi32.tar.gz you need the following libraries [on the latest Raspbian (Buster/Debian 10)] sudo apt install libqtgui4 libqt4-svg libqt4-svg libqt4-opengl libqt4-network libqtwebkit4 run Finder/Windows Explorer equivalent navigate to Downloads double click downloaded file - be sure to get latest version (n) if more than one drag j9.5 folder and drop on /home/pi (your home folder) navigate to /home/pi/j9.5 double click jconsole.sh - run jconsole in terminal

Finish Installation

Previous step created jconsole window - enter the following J sentences in that window to update base system, install all addons, install Jqt ide, create desktop launch icons, and upgrade JE.

load 'pacman'
'install' jpkg '*'
exit 0

Jqt Linux

See Jqt-Linux if Jqt fails to start.

Run and Play

jconsole

better to start with JHS or Jqt if not familiar with J double click jcxxx icon and try the following J sentences 2 20 $ 'hello world ' NB. string enclosed in single quotes a=. i.3 4 NB. table of integers a NB. display the table +/a NB. sum over columns +/"1 a NB. sum over rows NB. try your own lines here exit 0

JHS

double click jhsxxx icon to start server - no harm if it is already running in a browser, browse to URL localhost:65001/jijx or click here J can use multiple tabs - to avoid confusion close other tabs consider bookmarking jijx page try the following J sentences 2 20 $ 'hello world ' NB. string enclosed in single quotes a=. i.3 4 NB. table of integers a NB. display the table +/a NB. sum over columns +/"1 a NB. sum over rows load 'plot' plot 10?100 menu help>JHS help - be sure to read the pop-up section menu tour - take the J 1 tour and then perhaps plot NB. try your own lines here NB. close the jijx tab anytime - you can always browse to it again exit 0 NB. close the server if you want - but you can just leave it running

Jqt

Jqt is a full-featured desktop ide J front end double click jqtxxx icon to run Jqt front end