Constructors Revisited

• It was tempting to have written Person::new like this:

        package Person;
        sub new {
          bless {}, 'Person';
        }

• If we had, then after this code:

        $p = Employee->new();

• $p is now a Person, not an Employee

• It is very peculiar that Employee->new does not construct an Employee

• This call will fail because there is no Person::department:

        $p->department('Trite Advice');

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