xmlvm-users

[xmlvm-users] xmlvm newbie needs help

[Erez D <ere...@gm...>]

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.

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.
>
>
> ------------------------------------------------------------------------------
> Enable your software for Intel(R) Active Management Technology to meet the
> growing manageability and security demands of your customers. Businesses
> are taking advantage of Intel(R) vPro (TM) technology - will your software
> be a part of the solution? Download the Intel(R) Manageability Checker
> today! http://p.sf.net/sfu/intel-dev2devmar
> _______________________________________________
> xmlvm-users mailing list
> xml...@li...
> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>
>

Re: [xmlvm-users] xmlvm newbie needs help

[Erez D <ere...@gm...>]

thanks for replying,

I am  an N900 user, a goal of mine is to have many more applications for me
and any other N900 users.
As I saw XMLVM can be used to translate android apps to iphone, i thought i
could use XMLVM to translate android apps to the N900 as well.
The N900 runs on a pseudo debian system, so making a native c+gtk or c+qt
app will probably suffice.

as a first step, i wanted to see if i could translate an application ( and
took xokoban as an example ) to run under ubuntu, and later the  N900.

I read the XMLVM documentation, I got the idea, but some examples/tutorials
could have helped me.


i did 'ant clean' and then 'ant' and everything was built ok,
then i did:
cd xmlvm/trunk/xmlvm/demo/android/xokoban/src/org/xmlvm/demo/xokoban
javac Ball.java

and got:

Ball.java:27: cannot find symbol
symbol: class MovableGamePiece
public class Ball extends MovableGamePiece {
                          ^
Ball.java:28: cannot find symbol
symbol  : class GameView
location: class org.xmlvm.demo.xokoban.Ball
    public Ball(GameView view, int tileSize, int x, int y) {
                ^
Ball.java:34: package R does not exist
            return R.drawable.ball_20;
                    ^
Ball.java:36: package R does not exist
            return R.drawable.ball_30;
                    ^
Ball.java:38: package R does not exist
            return R.drawable.ball_100;

still need help getting started here.


thanks,
erez.

On Mon, Mar 28, 2011 at 5:59 PM, Paul Poley <bay...@gm...> wrote:

> 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.
>>
>>
>> ------------------------------------------------------------------------------
>> Enable your software for Intel(R) Active Management Technology to meet the
>> growing manageability and security demands of your customers. Businesses
>> are taking advantage of Intel(R) vPro (TM) technology - will your software
>> be a part of the solution? Download the Intel(R) Manageability Checker
>> today! http://p.sf.net/sfu/intel-dev2devmar
>> _______________________________________________
>> xmlvm-users mailing list
>> xml...@li...
>> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>>
>>
>

Re: [xmlvm-users] xmlvm newbie needs help

[Wolfgang K. <wol...@xm...>]

Erez,

simply running ant only compiles the XMLVM jar. Demos are not compiled.
To compile Xokoban go to the demo/android/xokoban folder and run "ant
compile". This will compile Xokoban. Note that you need the Android SDK
installed and configured in $XMLVM/properties/local.properties.
Compiling Xokoban using the provided ant script will also produce the
missing R class.

-- Wolfgang


On 29.03.11 09:38, Erez D wrote:
> thanks for replying,
>
> I am  an N900 user, a goal of mine is to have many more applications
> for me and any other N900 users.
> As I saw XMLVM can be used to translate android apps to iphone, i
> thought i could use XMLVM to translate android apps to the N900 as well.
> The N900 runs on a pseudo debian system, so making a native c+gtk or
> c+qt app will probably suffice.
>
> as a first step, i wanted to see if i could translate an application (
> and took xokoban as an example ) to run under ubuntu, and later the  N900.
>
> I read the XMLVM documentation, I got the idea, but some
> examples/tutorials could have helped me.
>
>
> i did 'ant clean' and then 'ant' and everything was built ok,
> then i did:
> cd xmlvm/trunk/xmlvm/demo/android/xokoban/src/org/xmlvm/demo/xokoban
> javac Ball.java
>
> and got:
>
> Ball.java:27: cannot find symbol
> symbol: class MovableGamePiece
> public class Ball extends MovableGamePiece {
>                           ^
> Ball.java:28: cannot find symbol
> symbol  : class GameView
> location: class org.xmlvm.demo.xokoban.Ball
>     public Ball(GameView view, int tileSize, int x, int y) {
>                 ^
> Ball.java:34: package R does not exist
>             return R.drawable.ball_20;
>                     ^
> Ball.java:36: package R does not exist
>             return R.drawable.ball_30;
>                     ^
> Ball.java:38: package R does not exist
>             return R.drawable.ball_100;
>
> still need help getting started here.
>
>
> thanks,
> erez.
>
> On Mon, Mar 28, 2011 at 5:59 PM, Paul Poley <bay...@gm...
> <mailto:bay...@gm...>> wrote:
>
>     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...
>     <mailto: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.
>
>         ------------------------------------------------------------------------------
>         Enable your software for Intel(R) Active Management Technology
>         to meet the
>         growing manageability and security demands of your customers.
>         Businesses
>         are taking advantage of Intel(R) vPro (TM) technology - will
>         your software
>         be a part of the solution? Download the Intel(R) Manageability
>         Checker
>         today! http://p.sf.net/sfu/intel-dev2devmar
>         _______________________________________________
>         xmlvm-users mailing list
>         xml...@li...
>         <mailto:xml...@li...>
>         https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>
>
>
>
> ------------------------------------------------------------------------------
> Enable your software for Intel(R) Active Management Technology to meet the
> growing manageability and security demands of your customers. Businesses
> are taking advantage of Intel(R) vPro (TM) technology - will your software 
> be a part of the solution? Download the Intel(R) Manageability Checker 
> today! http://p.sf.net/sfu/intel-dev2devmar
>
>
> _______________________________________________
> xmlvm-users mailing list
> xml...@li...
> https://lists.sourceforge.net/lists/listinfo/xmlvm-users