Monitor standard out continously

Question

I'm using Linux labview and need to continuously monitor another
program output to "standard out" while it is running.  The System
Exec.vi will only update the "standard out" when the program finishes. 
Is there a direct way of doing this instead of redirect the standard
out to a file then read that file periodically?
thanks,
Anh

Answer 1

first grant
java.lang.Runtime Permission to the
user in whose schema ur going to execute code.
Then in ur code set the standard.out stream
to a file
e.g.
System.setOut(new PrintStream(
new FileOutputStream("log file name"))
this will send all system.out messages
to ur logfile
do the same for stderr as well.