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# Starting J

J runs on Windows and Unix and although it is portable there are some necessary differences. On each platform there is Jwd (GUI) as well as Jconsole (command line). See the relevant section below for the J you want to start.
Windows Jwd
When you install J on Windows the Binary setup creates a blue J icon for this version of J in the J Program Group. Run this icon to start J.
The blue J icon starts Jwdw (Windows Jwd). To run Jwdp (portable (Java based) Jwd) see Starting Windows Jwdp.
Windows Jconsole
Run jconsole.exe in your J directory to run Jconsole.
Unix Jwd
Run shell script jw in your J directory to run Jwdp (portable Jwd). For example:
...> ~/j504/jw
jw requires Java (version 1.4.0 or later) and assumes java is in your path. Check these assumptions with:
...> java -version
java version "1.4....
A possible jw failure is that java isn't on your path and you can edit jw to give the full path.
Unix Jconsole
Run jconsole in your J directory to run Jconsole. For example:
,,,> ~/j504/jconsole
End your Jconsole session with ctrl+d.

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