Java SE (Java Platform, Standard Edition)

hi experts,
I am trying to execute a set of commands from java program

eg: from command prompt

java CommandExecutor c:\winnt\notepad.exe c:\some.exe c:\onemorecommand.exe

and inside the CommandExecutor main method..

public static void main(String []arg)
{
for(i = 0; i < arg.length; i++)
{
Runtime.getRuntime().exec(arg(i));
}
}

the above code is executing all the command one after the other, but I want to execute the above commands squentially, i.e I want to execute the second command only after finishing the first command and the third after finishing the second and so on depending upon the arguments passed, how can I acheive this...

I have tried to use the Process which is returned by the exec(arg) method but the exitValue() returns same value before execution and after execution.

thanks,
krishna