$my_car->model("corvette");

[download]

That is against the OO-approach. Your car object is supposed to represent a real-life object (a car). You cannot change the model of a car. You can only get a new instance (a different car) for the new model.

How about this: A class CarPark which you can initialize from your file and query for Car objects. 

my $park = new CarPark( filename => 'blah');
  # this will read the file, and (unless the file 
  # is too big or can change in between) save it into 
  # an internal structure suitable for the lookups
  # you are going to do (probably hash keyed on car model)
  # so that you have to read it only once.

my $car = $park->get("pinto");
print $car->horse_power;

$car = $park->get("corvette");
   # a new instance
print $car->horse_power

[download]

In reply to Re: Advice on OO Program structure & organization by Thilosophy
in thread Advice on OO Program structure & organization by yoda54

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