#!/usr/bin/perl -w

use strict;  #never, never leave home without it

my %chars = ();
my $string = "J. J. is cool!";
foreach my $character (split //, $string) {
     $chars{$character}++;
}
print "Report:\n";
foreach my $key (keys %chars) {
     print "\t$key = $chars{$key}\n";
}