separate JVM's

[tony james]

Hi,
coud you tell me of some mechanism by which i start as many separate JVM's from one program/system? i do not want to use threads because they belong to a single JVM.
Thanx in advance.
tony

[Michael Ernest]

Here's one way:

public class Whatever
{
   public static void main(String args[]) {
      System.exec("java This");
      System.exec("java That");
      System.exec("java OneMore");
   }
}

------------------
Michael Ernest, co-author of: The Complete Java 2 Certification Study Guide

[tony james]

Hi Michael,
When i compile the above code, i get this error:
Method exec(java.lang.String) not found in class java.lang.System.
i cant find System.exec() in the java API...
Please help.
Thanx,
tony

[This message has been edited by tony james (edited December 07, 2001).]

[Cindy Glass]

Try using
Runtime.getRuntime().exec("java test");
Runtime.getRuntime().exec("notepad.exe myfile.txt");
Runtime.getRuntime().exec("c:\\Program Files\\Internet Explorer\\IExplore.exe");
Runtime.getRuntime().exec("jar -tf whatever.jar > output.txt");
Runtime.getRuntime().exec("cmd /K start run.bat");
etc.

etc

[Michael Ernest]

Serves me right for typing off the top of my head -- thanks Cindy.

[tony james]

Hi Cindy,
Thanq so much.It works fine.
Can u explain this statement ... the argument passed to exec() .
Runtime.getRuntime().exec("cmd /K start run.bat");
Are there any other parameters for running a batch file?
Thanx
tony