If you really mean just the last non-newline character:
#! perl -slw
use strict;
my @array = map{ chomp; chop } <DATA>;
__END__
xxxxxx: 0
yyyyyy: 6
zzzzzz: 5
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.