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Inheritance Question

Started by falkone Apr 23, 2003 at 8:39 AM 2 replies 650+ views

Original Post

Apr 23, 2003 at 8:39 AM

I have a question.. i asked my programming teacher but she either didn''t seem to understand or didn''t know. say i have a class.. and in this class, i have a static variable ''var''. Through all instances of this class, ''var'' will act as only one variable, having the same value in all classes, correct? Now, if i inherit another class from the first class, will this new class share the same static variable ''var''? or will it have a new static variable ''var'' shared with only data of type of the new class? Thanks Falkone

Oluseyi

526

Oluseyi

Apr 23, 2003 at 9:39 AM

quote:
Original post by falkone
say i have a class.. and in this class, i have a static variable ''var''. Through all instances of this class, ''var'' will act as only one variable, having the same value in all classes, correct? Now, if i inherit another class from the first class, will this new class share the same static variable ''var''? or will it have a new static variable ''var'' shared with only data of type of the new class?

If the variable is inheritable (public or protected), then it will be the same for the derived class.

MARS_999

363

MARS_999

Apr 23, 2003 at 5:08 PM

To clear it up, if the variable is declared static and is public or protected the variable will be inherited as static to the derived class. This means that the derived class will access the same static variable as the base class.

David Henry

Apr 25, 2003 at 11:34 AM

falkone,

why not just test it out yourself. This is what I do to
clarify how things really work. Only requires a very simple
program. Have fun!

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