What if I want to print text from House's default method, what code should I write?
((House)off).lockTheGates(); doesn't work
About Question enthuware.ocpjp.v11.2.3650 :
Moderator: admin
-
- Posts: 1
- Joined: Tue Mar 21, 2023 3:28 pm
- Contact:
-
- Site Admin
- Posts: 10065
- Joined: Fri Sep 10, 2010 9:26 pm
- Contact:
Re: About Question enthuware.ocpjp.v11.2.3650 :
You can call House.super.lockTheGates(); from within any instance method of HomeOffice class.
You cannot use this syntax from outside HomeOffice to invoke House's lockTheGates(), though. Meaning, if you have a reference to a HomeOffice object, then the method implemented by HomeOffice will be invoked. It is not possible to invoke the default method if the implementing object has overridden it.
It is the same as in any instance method in a super class - subclass hierarchy. Once a subclass overrides a superclass's method, it is not possible to access the super class's implementation. But that's ok because that's is the whole point of overriding a method.
You cannot use this syntax from outside HomeOffice to invoke House's lockTheGates(), though. Meaning, if you have a reference to a HomeOffice object, then the method implemented by HomeOffice will be invoked. It is not possible to invoke the default method if the implementing object has overridden it.
It is the same as in any instance method in a super class - subclass hierarchy. Once a subclass overrides a superclass's method, it is not possible to access the super class's implementation. But that's ok because that's is the whole point of overriding a method.
If you like our products and services, please help us by posting your review here.
Who is online
Users browsing this forum: Bing [Bot] and 91 guests