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Andrew Lim
8,004 PointsWhy would you not put the _owner in the constructor?
Why would you not put the _owner in the constructor?
If you have access to the class, wouldn't it be easier to read if all your properties are set there?
I'm still having trouble with the concept with tutorials the reason why information is added after the fact, using expressions to create properties that don't exist yet. Is it just for demonstration purposes, is it because normally people don't have access to change the class and have to use this method, or is it common practice and just something I should get used to?
2 Answers
Steven Parker
231,268 PointsI think the "owner" is a reasonably good practical example of data added after an instance is created. In this case, the pet instance might be created to keep track of a pet that is is available for adoption. Then some time later, the pet may acquire an owner (when the owner adopts the pet).
That info could not be part of the constructor because the value is not known at the time of instance creation.
Adam Kubriczky
4,405 PointsI think the main reason is that, you are using setters to restrict the setting of that particular property. For example, if you create a setter for the breed, then you would like to restrict values to valid breeds only.