Kas abstraktse klassis võib puududa deklareeritud kui abstraktsed meetodid, ja kuidas see mõjutab selle kasutamist?

In C#, an abstract class can contain abstract methods without implementation. These methods are declared with the abstract keyword and have no body.

If an abstract method is declared in an abstract class, that class cannot be instantiated directly — it only serves as a base for inheritance.

Subclasses that inherit from an abstract class are required to implement all its abstract methods; otherwise, they must also be declared abstract.

Thus, the absence of implementation of abstract methods in an abstract class forces inheriting classes to provide a concrete implementation, ensuring the contract and structure of the code.