Re^2: Testing Java code

And don't forget that you can also use open to start external programs:

open($javain, "java ... |") or die "....";
while (<$javain>) {
  #receive the output
}
close($javain);
#
# or
#
open($javaout, "| java ...") or die "....";
foreach (@inputline) {
  print $javaout $_;
  #send some input
}
close($$javaout);
[download]

Key thing is the pipe "|".

$\=~s;s*.*;q^|D9JYJ^^qq^\//\\\///^;ex;print

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Re^3: Testing Java code by drawde83 (Acolyte) on Sep 30, 2005 at 09:46 UTC
ok I've tried out those methods but when I run the line `my $output = qx/java MyProgram 50000/` it outputs the time for that the process runs to the screen but I can't retrieve it	[reply] [d/l]
Re^4: Testing Java code by Roy Johnson (Monsignor) on Sep 30, 2005 at 12:40 UTC
It's probably writing it to STDERR. Try `my $output = qx/java MyProgram 50000 2>&1/` [download] Caution: Contents may have been coded under pressure.	[reply] [d/l]
Re^4: Testing Java code by hakkr (Chaplain) on Sep 30, 2005 at 13:08 UTC
sounds like you java program is running then but maybe not exiting, try a System.exit();	[reply]