Re: [xmlvm-users] xmlvm newbie needs help

[Paul P. <bay...@gm...>]

XMLVM will translate Java code to Objective-C or C, but not C++.  This is
good though since C++ is an extension of C.

As you say you are a C++ programmer looking to translate Xokoban to C++, I'm
not sure XMLVM is what you're looking for.  I.e. the idea is to write code
in Java & it will work the same running as Objective-C or C++, but you
shouldn't have to look at the Objective-C or C++ code, barring some
exceptions.  If you do look at the generated code, you can easily tell a
human didn't write it, although with some XMLVM knowledge, you can read &
understand it.

That to say, if you are interested in writing C++, XMLVM is probably not the
solution.  If however, you are interested in writing Java, you've come to
the right place.

To answer your question, Java source files are *.java.  When you compile
them using "javac", they are converted into *.class.  Those byte code files
(think of them in some ways similar to *.exe) are what the JVM executes in
Java proper & what XMLVM uses to translate to another language.

So if you are interested in XMLVM, I recommend first acquainting yourself
with Java proper.

Possibly to get you started though, run "ant clean" first to get rid of some
old files that may be causing 'package R does not exist'.

Thanks,
Paul


On Mon, Mar 28, 2011 at 4:16 AM, Erez D <ere...@gm...> wrote:

> I have just checked out xmlvm, and want to use it to compile android app to
> c++
> I read the documentation, but still have problems understanding what to do.
>
> i have generated dist/xmlvm.jar using ant and openjdk
>
> BTW, I'm a c++ programmer, with small experiance  in java.
>
> For example, i need help compiling xokoban (from xmlvm demo) to c++
> 1. according to the docs, xmlvm's input is *.class, but xokoban files are
> *.java.  do i just use javac to compile xokoban.java to xokoban.class (this
> will make java bytcode. is it ok or dex is needed ? (if so, how do i
> generate dex ?) )
> 2. trying 'javac Ball.java' from xokoban's directory: i get many error
> messages of missing stuff, like 'package R does not exist'. is this because
> of the order i am compiling or am i missing somthing.
>
>
> can someone give me a small tutorials of how to generate c/cpp from xokoban
> (ubuntu 10.10 64 bit).
>
> thanks,
> erez.
>
>
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