But my code above doesn't print anything.
It's worse than that - your code doesn't compile:
$ perl -cw 11100018.pl
Can't locate stricts.pm in @INC (you may need to install the stricts m
+odule) (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5
+/usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/
+perl5 /usr/share/perl5 .) at 11100018.pl line 3.
BEGIN failed--compilation aborted at 11100018.pl line 3.
Here's something which is what I think you might want instead.
#!/usr/bin/env perl
use strict;
use warnings;
my @array = qw/b d a c/;
my %hash = (
a => 200,
b => 100,
c => 30,
d => 40
);
for my $key (sort @array) {
if ($hash{$key}) {
print "array element: $key = $hash{$key} inside \%hash\n";
}
}
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