Re: [Help-glpk] [Fwd: Struggling to link GLPK with java]

[Heinrich Schuchardt]

Hello David,

your mail had to be forwarded manually because you are not subscribed to the 
list, see
https://lists.gnu.org/mailman/listinfo/help-glpk

If you download GLPK for Windows from
http://sourceforge.net/projects/winglpk/
it includes all files needed.

The DLLs and the jar-files for GLPK and GLPK for Java are in directories 
glpk-4.51/w32 and glpk-4.51/w64.

Which DLLs you want to use depends on whether you are using the 64bit or the 
32bit Java runtime. If unsure run

class Info {
  public static void main(String[] arg) {
    String bits = null;
    bits = System.getProperty("com.ibm.vm.bitmode");
    if (bits == null) {
      bits = System.getProperty("sun.arch.data.model");
    }
    System.out.println( "Java is " + bits + "bit.");
  }
}

If you still cannot get it running, please, send me the console in- and output.

Best regards

Heinrich Schuchardt

http://www.xypron.de

> -------- Forwarded Message --------

> To: address@hidden <address@hidden>
> Subject: Struggling to link GLPK with java
> Date: Thu, 27 Jun 2013 15:21:21 +0000
>
> Hi,
>
>
>
> I’m having a catalogue of problems trying to get a java file to call
> GLPK’s solver. I’m on a Windows 7 machine, with GLPK 4.47 installed and
> working, and JDK SE 7 doing the same.
>
>
>
> Working through the ‘GNU Linear Programming Kit Java Binding’
> documentation, I’ve got so far as the trivial example (section 2.2.1)
> and then hit all kinds of errors when trying to compile. My command
> prompt output is attached.
>
> The line set CLASSPATH= … seems to be my problem. I’ve tried typing this
> into the command prompt but the file glpk-java.jar does not seem to
> exist. I’ve tried to install libglpk-java-1.0.29.tar.gz from
> http://sourceforge.net/projects/glpk-java/files/, but hit more brick
> walls when the trying to run the extracted file
> Build_JNI_with_VC10_DLL.bat.
>
> I’d be grateful for any advice at all. I haven’t got a clue what I’m
> doing.
>
> Regards,
>
> Dave Piper