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Home » abstract-class

Tag: abstract-class

Implementing subclass methods in abstract class or casting?

Java March 26, 2021

Suppose I have a superclass Zone, which serves the purpose of generalizing more specific types of Zone which are defined in their own respective subclasses. I wish to create a game board, which …

how to set value in abstract class c#

C# March 15, 2021

I’m trying assign value AbstractArAdjustmentLine list property but getting error “Object reference not set” Below 2 class are generated through dll, I can’t change the class structure. …

Requires clause with pure abstract class type parameter?

C++ March 13, 2021

Consider the following simple concept: template concept C = requires(T a) { a.f(); }; What should happens if we take an abstract class type as the requires expressions’s argument? …

Declare an object as abstract class

C++ March 12, 2021

Edit this question as originally posted was a simplified version of what I had and as such did not contain the problem which was causing the error. I have updated to be more like my problem, and will …

Can I add code to an inherited method without overriding the whole method? (Java)

Java March 6, 2021

so I inherited a public method from an abstract class X but instead of overriding the method to copy and paste the whole content plus add two more lines of code, I would like to just use the code that …

Django how to access an abstract Base model local variables

Python March 1, 2021

I have defined this abstract base model as below: class ActivityAbstractBaseModel(models.Model): POOR = ‘PR’ FAIR = ‘FA’ MEDIOCRE = ‘ME’ GOOD_ENOUGH = ‘GE’ GOOD = ‘GO’ …

Augment abstract method in typescript

JavaScript February 21, 2020

I have abstract class Command with abstract method “execute()”. A lot of other commands extend it. Each has its own “execute()” implementation. How can I add some common logic (like logging) each …

Java dosen’t recognize that object belongs to subclass

Java March 28, 2018

So I’m doing some coursework about making a little game’s prototype. I have these simple classes (and some others that are not relevant): abstract class Weapon { int damage; int cost; } …

Interfaces to allow unit’s ability to attack ground, air, or both in Java using Design Patterns

Java August 13, 2013

Im making a text game that has an abstract Fighter class. within Fighter I have a variable called protected boolean isGround. then I have 2 abstract classes that extend Fighter called AirFighter and …

How to call over-ridden abstract class methods

Java November 10, 2011

I have scenario like Here is the abstract class abstract class A { public void add() { //do something } } Here is the class that …

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