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Runtime.exec() will work only with pure windows executable(notepad.exe
etc.), not simmulated DOS commands(COPY).


geoff_robinson@my-deja.com wrote:

> Try breaking this apart so you can do a little debugging.
>
> Process p = r.exec(command);
> p.waitFor();
>
> see if it works, then do the Input Stream stuff.
>
> Geoff
>
> In article <7vmjmm$s23$1@n.ruf.uni-freiburg.de>,
>   "Christoph Sperle" <sperle@wi.ba-loerrach.de> wrote:
> > Hi,
> >
> > I have a Problem with the exec-Method of the Runtime-Object. On the
> > DOS-Commandline this statement works propperly:
> >
> > command.com /c copy C:\print.ps lpt1
> >
> > but with the exec-Method it doesen't. Here is my Programm:
> >
> > import java.io.*;
> >
> > public class doscommand {
> >
> >     public static void main (String[]args){
> >
> >         int i;
> >         InputStream is;
> >
> >         try{
> >             is = Runtime.getRuntime().exec("command.com /c copy
> C:\\print.ps
> > lpt1").getInputStream();
> >             while((i = is.read()) != -1) System.out.print((char)i);
> >         }
> >         catch(java.io.IOException e) {
> >             System.err.println(e.getMessage());
> >             System.exit(1);
> >     }
> > }
> >
> > Why is this? Can anyone help me?
> >
> > Thank you, christoph.
> >
> >
>
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