How do i run jar files from within a java program?

[rotaryfreak]

Hi,

I have created several projects using eclipse and java. Each of these projects has a runnable .jar file. I would like to create one java program which would call each of my .jar files, kind of like a batch sequential system where one jar file would execute only after the previous one has completed.

public static void main(String[] args) {
     call jar file 1
     call jar file 2
     call jar file 3
}

this way, if i create future projects that need to run after my last jar file, i would simply add a new line:
call jar file 4

I have tried google but the examples there do not seem to be working on my machine. This is what i have tried:

ProcessBuilder builder = new ProcessBuilder("java -jar A.jar");
Process process = builder.start();

when i try to run this, i get an error:
Cannot run program "java -jar A.jar": CreateProcess error=2, The system cannot find the file specified


i have googled this error and this error refers to the environment path. I have verified this and my environment path points to the right location.

any ideas?

this is what's in my Environment Path:
C:\Program Files\Java\jdk1 .6.0_25\jre\bin \;C:\Program Files\Java\jre6 \bin\;C:\Progra m Files (x86)\SSH Secure Shell;

and this is whats in my class path:
%SystemRoot%\sy stem32;%SystemR oot%;%SystemRoo t%\System32\Wbe m;%SYSTEMROOT%\ System32\Window sPowerShell\v1. 0\;C:\Program Files (x86)\Windows Live\Shared;C:\ Program Files\Java\jdk1 .6.0_25\jre\bin \;C:\Program Files\Java\jre6 \bin\;C:\Progra m Files\TortoiseS VN\bin;

thank you!

[Dheeraj Joshi]

A.jar should reside in current class location or it should be mentioned in the environment variables.

Regards
Dheeraj Joshi