[antlr-interest] Running ANTLRWorks 1.3.1 -- javac error

[Bart Kiers]

On Tue, Jan 26, 2010 at 7:37 PM, Andreas Stefik <stefika at gmail.com> wrote:

> I think he's asking why the debugger throws errors with javac, not how to
> start antlrworks.
>
> The error you are seeing is because the antlrworks debugger, far as I
> understand it, needs a java compiler to actually debug a grammar. As such,
> you need to put the path to your javac compiler in the path field in
> antlrworks. This is straightforward to do:
>
> 1. Open up the options window. I'm on mac at the moment, which is in
> preferences, but on windows it is similar.
> 2. Go to the tab labeled compiler and look for where it says javac.
> 3. Check path under javac, then click browse and a window should appear.
> 4. Browse to where javac is located.
>
> As I'm on mac, the paths are different, but if I recall correctly, on
> windows javac is in program files, so it would be something "like"
>
> c:\program files\Java\bin\javac.exe
>
> That path might not be correct, but I don't have a windows box on me to
> give it to you exactly. Should be close though and if you browse around you
> should find it.
>
> The last detail is that, if you can't find javac, you may not have the JDK
> installed (java.sun.com), so you'll need to do that. It's just a little
> installer, so there's nothing fancy to do. You can know for sure whether you
> have it by going to the command line and typing:
>
> javac
>
> if it throws an error, you need the JDK. If it's there, you will see a
> bunch of information put out to the terminal.
>
> Hope that helps,
>
> Andreas Stefik, Ph.D.
> Assistant Professor
> Department of Computer Science
> Southern Illinois University Edwardsville
>
>
>
> On Tue, Jan 26, 2010 at 12:19 PM, Bart Kiers <bkiers at gmail.com> wrote:
>
>> Karljürgen,
>>
>> In order to run ANTLRWorks, you do not need 'javac', but 'java'.
>>
>> 'javac' is the compiler that will compile java source files into byte
>> codes
>> that the JRE (Java Runtime Environment) interprets/executes.
>>
>> 'java' is the application that executes the byte codes produced by
>> 'javac'.
>> Since ANTLRWorks is already compiled, you only need 'java'.
>>
>> So, on the command line, give the following command:
>>
>> java -jar antlrworks-1.3.1.jar
>>
>> If the above does not work, please post the exact error message(s) on the
>> list.
>>
>> Thanks.
>>
>> Bart.
>>
>>
>> On Tue, Jan 26, 2010 at 6:51 PM, Karljurgen Feuerherm <kfeuerherm at wlu.ca
>> >wrote:
>>
>> > Hello,
>> >
>> > I'm new to this product (and to modern products of this type
>> > generally... was a B programmer in the early 80s and trying to get
>> > updated!)
>> >
>> > I'm on Windows XP, and have run the JAR file to invoke ANTLRWorks.
>> >
>> > I'm trying out the Expression Evaluator Tutorial. Interpreter works
>> > fine, but invoking the debugger gets me
>> >
>> > "java.IO.IOException: Cannot run program "javac": CreateProcess
>> > error=2, the system cannot find the file specified"
>> >
>> > (Oddly, after a while, trying it again got me a different error about
>> > timeout, even though I'd changed nothing [Sure. Famous Last Words,
>> > eh?].)
>> >
>> > Not sure where to go from here... By all means be pedantic in a
>> > response :)
>> >
>> > Thanks!
>> >
>> > K
>> >
>> > Karljürgen G. Feuerherm, PhD
>> > Department of Archaeology and Classical Studies
>> > Wilfrid Laurier University
>> > 75 University Avenue West
>> > Waterloo, Ontario N2L 3C5
>> > Tel. (519) 884-1970 x3193
>> > Fax (519) 883-0991 (ATTN Arch. & Classics)
>> >
>> > List: http://www.antlr.org/mailman/listinfo/antlr-interest
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>>
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>