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How to run external .exe programs from java

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How to run external .exe programs from java

Jul 2nd, 2004

Hi everyone,

Could some one please tell me or show me the entire codings of how to run external .exe programs in java. I want to do this because i have a lot c/vb programs that i want to run in my java program.

Thank You

Yours Sincerely

Richard West

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Re: How to run external .exe programs from java

Jul 2nd, 2004

the code goes like this:

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
try
{
 Runtime rt = Rintime.getRuntime() ;
 Process p = rt.exec("Program.exe") ;
 InputStream in = p.getInputStream() ;
 OutputStream out = p.getOutputStream ();
 InputSream err = p,getErrorStram() ;
 
//do whatever you want
 //some more code
 
 p.destroy() ;
}catch(Exception exc){/*handle exception*/}
try
{
 Runtime rt = Rintime.getRuntime() ;
 Process p = rt.exec("Program.exe") ;
 InputStream in = p.getInputStream() ;
 OutputStream out = p.getOutputStream ();
 InputSream err = p,getErrorStram() ;
 
//do whatever you want
 //some more code
 
 p.destroy() ;
}catch(Exception exc){/*handle exception*/}

It's not wrong not knowing, but it's wrong not wanting to know.

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Re: How to run external .exe programs from java

Jul 15th, 2004

try out this code ... it will not be platform independent ....
Process p = Runtime.getRuntime().exec("c:\myprogram.exe");

I dont have the time to test it .... if you succeed please tell me too.
:eek:

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Re: How to run external .exe programs from java

Aug 28th, 2004

Hi everyone,
The above codes only seem to run external .exe programs but what if i want to run external jar programs. Could someone show me or e-mail me the codings of how to do this the right way.

Thank You

Yours Sincerely

Richard West

Last edited by alc6379; Oct 23rd, 2004 at 4:30 am. Reason: removed email address

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Re: How to run external .exe programs from java

Aug 29th, 2004

Read about the dynamic class loader

http://java.sun.com/j2se/1.4.2/docs...lassLoader.html

http://www.technize.com

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Re: How to run external .exe programs from java

Oct 19th, 2004

i'm using the code from above to try to run a program and here's my problem... when i call an exe that i wrote in VB, the program runs fine. if i call a c or c++ program the program loads into memory (i see it in the processes tab) but the console doesn't open up with the program in it.
here's the code i have right now for it...

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
try
   {
    Runtime rt = Runtime.getRuntime();
    Process p = rt.exec("vbex.exe");
    InputStream in = p.getInputStream();
    OutputStream out = p.getOutputStream();
    InputStream err = p.getErrorStream();
 
    p.destroy() ;
    }catch(Exception exc){/*handle exception*/}
try
   {
    Runtime rt = Runtime.getRuntime();
    Process p = rt.exec("vbex.exe");
    InputStream in = p.getInputStream();
    OutputStream out = p.getOutputStream();
    InputStream err = p.getErrorStream();

    p.destroy() ;
    }catch(Exception exc){/*handle exception*/}

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Re: How to run external .exe programs from java

Oct 19th, 2004

hi everyone,

Do this instead

void run ()
{
try
{
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("vbex.exe");
}

catch(Exception e)
{

}

}

I hope this helps you

Richard West

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Re: How to run external .exe programs from java

Jun 16th, 2008

HI EVERYBODY,
I have a question regarding this i used this to call exe application but it is opening independently, but what if i want to run that particular exe in the frame itsself like an JInternal Frame..

Please help me regaridng this..

Thanks in advance..

Subroto Bhattacharjee