C# Abstract Class Methods: How to Call

In C#, abstract classes cannot be instantiated, but they can be inherited by subclasses and implement their abstract methods. Subclasses must implement the abstract methods defined in the abstract class in order to use them. Abstract classes can contain abstract methods, virtual methods, and non-virtual methods.

After a subclass inherits an abstract class, the methods defined in the abstract class can be called by creating an instance of the subclass. This allows the actual implementation of the abstract methods in the subclass to be invoked. Through polymorphism, instances of the subclass can also be assigned to variables or parameters of the abstract class type, and then the methods of the abstract class can be called.

In conclusion, the methods of an abstract class can be called through instances of its subclasses, and will actually invoke the implementations of those methods in the subclass.