Here is a part of code which I had used for copying a file. Modify it for
using javac. Probably you need to go to
the relevant directory first.. i.e. cmd[2] will be "cd c:\mydir" and then
use javac or use javac with option that allows you to mention path.
// works for DOS
String cmds[] = new String[5];
cmds[0] = "cmd";
cmds[1] = "/c";
cmds[2] = "copy";
cmds[3] = "CommandMapping.java ";
cmds[4] = "xxxx.java ";
File currentDir = new File("c:\\temp");
// execute the command
Process pro = Runtime.getRuntime().exec(cmds, null, currentDir);
// wait until it's done executing
pro.waitFor();
// what did the process output from the Input pipe back to
// this process (okay, who named this stuff)?
InputStream out = pro.getInputStream();
// output it (really slowly)
int i;
while ((i = out.read()) != -1) System.out.print((char) i);
hope this helps,
-sourabh
----- Original Message -----
From: tudor.sava <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, February 21, 2001 4:45 AM
Subject: Re: OT Run a system command from java.
> Ok !!!
>
> It works with "Notepad.exe"
> Can you explain me why if when I try to execute "javac Application.java"
> (Application.java is a valid java application in current directory) isn't
> work. That I need.
> Help....
> Initially a used a native interface and I used System() from C and it
works.
>
> Thx in advance. Tudor
>
>
> -----Original Message-----
> From: A mailing list for discussion about Sun Microsystem's Java Servlet
> API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
> Thierry Boutevin
> Sent: Thursday, February 14, 2002 10:34 AM
> To: [EMAIL PROTECTED]
> Subject: Re: OT Run a system command from java.
>
>
> Yes here is an exemple
>
> RT = Runtime.getRuntime() ;
>
> try {
> p = RT.exec("notepad.exe") ;
> } catch(IOException e) {
> System.out.println("IOException: " + e.getMessage());
> }
>
> Thierry
>
>
> |--------+------------------------------->
> | | "Dahnke, Eric" |
> | | <[EMAIL PROTECTED]|
> | | OM> |
> | | Sent by: "A mailing |
> | | list for discussion |
> | | about Sun |
> | | Microsystem's Java |
> | | Servlet API |
> | | Technology." |
> | | <SERVLET-INTEREST@JAV|
> | | A.SUN.COM> |
> | | |
> | | |
> | | 14/02/2002 00:57 |
> | | Please respond to "A |
> | | mailing list for |
> | | discussion about Sun |
> | | Microsystem's Java |
> | | Servlet API |
> | | Technology." |
> | | |
> |--------+------------------------------->
>
>
>---------------------------------------------------------------------------
> ---------------------------------|
> |
> |
> | To: [EMAIL PROTECTED]
> |
> | cc:
> |
> | Subject: OT Run a system command from java.
> |
>
>
>---------------------------------------------------------------------------
> ---------------------------------|
>
>
>
> Perl and PHP have exec() or system() to invoke OS level executeables.
> Does
> Java have anything similar?
>
>
> Regards, Eric
>
>
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