inheritance Archives - Page 5 of 7

When to use an interface instead of an abstract class and vice versa?

This may be a generic OOP question. I wanted to do a generic comparison between an interface and an abstract class on the ...

May 3, 2022
0 Comments

How should I have explained the difference between an Interface and an Abstract class?

In one of my interviews, I have been asked to explain the difference between an Interface and an Abstract class. Here’s my response: ...

May 2, 2022
0 Comments

Ruby: kind_of? vs. instance_of? vs. is_a?

What is the difference? When should I use which? Why are there so many of them? 5 s 5

May 1, 2022
0 Comments

How to determine an object’s class?

If class B and class C extend class A and I have an object of type B or C, how can I determine ...

April 30, 2022
0 Comments

What does ‘super’ do in Python? – difference between super().init() and explicit superclass init()

What’s the difference between: class Child(SomeBaseClass): def __init__(self): super(Child, self).__init__() and: class Child(SomeBaseClass): def __init__(self): SomeBaseClass.__init__(self) I’ve seen super being used quite a ...

April 27, 2022
0 Comments

How to call a parent class function from derived class function?

How do I call the parent function from a derived class using C++? For example, I have a class called parent, and a ...

April 26, 2022
0 Comments

How do I call a parent class’s method from a child class in Python?

When creating a simple object hierarchy in Python, I’d like to be able to invoke methods of the parent class from a derived ...

April 25, 2022
0 Comments

Implements vs extends: When to use? What’s the difference?

Please explain in an easy to understand language or a link to some article. 19 s 19 extends is for extending a class. ...

April 22, 2022
0 Comments

What are the rules for calling the base class constructor?

What are the C++ rules for calling the base class constructor from a derived class? For example, I know in Java, you must ...

April 22, 2022
0 Comments

What is object slicing?

In c++ what is object slicing and when does it occur? 18 s 18 Most answers here fail to explain what the actual ...

April 20, 2022
0 Comments