Top "Abstract-methods" questions

An abstract method is one with only a signature and no implementation body.

When and Why to use abstract classes/methods?

I have some basic questions about abstract classes/methods.I know basic use of abstract classes is to create templates …

abstract-class abstract-methods
python @abstractmethod decorator

I have read python docs about abstract base classes: From here: abc.abstractmethod(function) A decorator indicating abstract methods. Using …

python abc abstract-methods
why do we need abstract classes in Java?

Why do we need abstract classes in Java? If you're never going to make it into an object, why have …

java class abstract-class abstract abstract-methods
Best example of Abstract class in Android

I am trying to design one Abstract class and method in Android and call those methods by extending the class …

android abstract-class abstract-methods
Should an abstract class have at least one abstract method?

Is it necessary for an abstract class to have at least one abstract method?

java abstract-class abstract abstract-methods
Default implementation or abstract method?

Is it better to put a default implementation of a method in a superclass, and override it when subclasses want …

java polymorphism default abstract-methods
Why can abstract methods only be declared in abstract classes?

I understand that in abstract classes methods be both abstract, or not. But why can I not create an abstract …

java abstract-class abstract abstract-methods
overriding abstract methods in an inherited abstract class

Okay so basically I have the following problem: I'm trying to have an abstract class inherit another abstract class that …

c# inheritance abstract-class multi-level abstract-methods
C# design: Why is new/override required on abstract methods but not on virtual methods?

Why is new/override required on abstract methods but not on virtual methods? Sample 1: abstract class ShapesClass { abstract public int …

c# virtual language-design abstract-methods
java.lang.AbstractMethodError: com.ibm.db2.jcc.t4.b.isValid(I)Z

Good evening, I'm whith a problem on a project whith EJB Timer, I don't know what can I do to …

java jdbc abstract-methods