I have an abstract base class without abstract methods I want to statically check + forbid instantiations of it (with mypy) from abc import AB ...
I have an abstract base class without abstract methods I want to statically check + forbid instantiations of it (with mypy) from abc import AB ...
Here I have found that an Interface can have non-abstract method. Am I right ? Here is an example.. In this code I created an interface named A and im ...
New to Java coming from C++/Python and I found this in code today (not exactly this but similar [cant share code]): When looking at source of listF ...
I am a beginner in Java. I have a question about the abstract method in Interface. Is the following sampleMethod() an abstract method? My understandin ...
I have an abstract class that has a implements a abstract method, that works as a placeholder for the getters of a certain value in its childs: As ...
I'm a beginner in Java and I wanted to ask a question: Is that possible to clone implemented abstract method body? Example: ...
TL;DR: I want to run some logic (e.g. update database) inside an abstract class. maybe there is another way to do it, that's what i could think of so ...
I have problem with implementing simple class hierarchy for Arithmetic Expression's. TypeError: unsupported operand type(s) for *: 'NoneType' and 'in ...
I'm new at oop ,I want to pass object parameter of an abstract method but it gives me error, can anyone explain it to me and help me fix the error . T ...
I need to make a programm which is like a rally, theres 2 types of vehicles, motorcycle and cars, two types of motorcycle, with and without sidecar, t ...
Question: If I use a lambda expression with functional interface, the abstract method in functional interface cannot have "independent" generic parame ...
I have an assignment and my superclass default values always override the values I pass in the Test main method. In the debugger, i see the passing of ...
Tried the answer from force-implementing-specific-attributes-in-subclass But does not work. This code still passes with no errors. So how can I fo ...
When we call an abstract method of a abstract class from its constructor it returns null. Why? abstract class OverloadStaticMethod { OverloadStat ...
I have a class that implements an interface, but I don't want to explicitly implement some of the methods. So I am using __getattr__ dunder method for ...
I have a class that inherits from ABC, and does not have any abstractmethod. I would like to check if it's an abstract class, and am currently stumpe ...
I have an abstract basis class with an abstract method. from abc import ABC, abstractmethod I want to test if I get an error if I create a Child o ...
Abstract method's return type is void but I can implement it with a number type return. I did not take any error from compiler. Is this kind of bug ...
Is it possible to override generics constraints for abstract methods implementation? Let me explain... normally I would do something like: What I ...
In django abstract classes seem to be posibble by using: However I do not see how to declare abstract methods/functions within these classes that d ...