Hai I want to know what is the use of getters and setters. I faced this when I am reading Archive::Tar. I can understand the code. But I cannot relate and what is the actual use and what are the alternatives. 
my $tmpl = {
    _data   => [ ],
    _file   => 'Unknown',
};

for my $key ( keys %$tmpl ) {
    no strict 'refs';
    *{__PACKAGE__."::$key"} = sub {
        my $self = shift;
        $self->{$key} = $_[0] if @_;
        return $self->{$key};
    }
}

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In reply to What is the use of getter and setter by lakshmananindia

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