If you know the class file will be in the same directory as your Perl script you can open a pipe instead of using eval and backticks:

open(JAVA,'|java Hello') or die "oops: $!\n";
print while <JAVA>;
close JAVA;
[download]

chdir to the directory where the class file is if it is in a diferent directory than your Perl script.

Jeff

R-R-R--R-R-R--R-R-R--R-R-R--R-R-R--
L-L--L-L--L-L--L-L--L-L--L-L--L-L--