inheritance Archives - Page 3 of 7

How do I get a PHP class constructor to call its parent’s parent’s constructor?

I need to have a class constructor in PHP call its parent’s parent’s (grandparent?) constructor without calling the parent constructor. // main class ...

May 22, 2022
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Do I really have a car in my garage? [duplicate]

This question already has answers here: A Base Class pointer can point to a derived class object. Why is the vice-versa not true? ...

May 21, 2022
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What does it mean that Javascript is a prototype based language?

One of the major advantages with Javascript is said to be that it is a prototype based language. But what does it mean ...

May 20, 2022
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Abstract methods in Python [duplicate]

This question already has answers here: Is it possible to make abstract classes in Python? (13 answers) Closed 3 years ago. I am ...

May 19, 2022
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Do subclasses inherit private fields?

This is an interview question. Does subclasses inherit private fields? I answered “No”, because we can’t access them using the “normal OOP way”. ...

May 19, 2022
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Calling parent class init with multiple inheritance, what’s the right way?

Say I have a multiple inheritance scenario: class A(object): # code for A here class B(object): # code for B here class C(A, ...

May 18, 2022
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Extend data class in Kotlin

Data classes seem to be the replacement to the old-fashioned POJOs in Java. It is quite expectable that these classes would allow for ...

May 18, 2022
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Inheriting constructors

Why does this code: class A { public: explicit A(int x) {} }; class B: public A { }; int main(void) { B ...

May 18, 2022
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How to define custom exception class in Java, the easiest way?

I’m trying to define my own exception class the easiest way, and this is what I’m getting: public class MyException extends Exception {} ...

May 18, 2022
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Benefits of prototypal inheritance over classical?

So I finally stopped dragging my feet all these years and decided to learn JavaScript “properly”. One of the most head-scratching elements of ...

May 18, 2022
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