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Object-oriented Programming in C#
Abstract classes, Interfaces, and Patterns
Abstract classes and abstract methods in C#

An abstract Stack without data representation, but with some implemented operations

/user/normark/oop-csharp-1/sources/c-sharp/stack/abstract-stack/without-exceptions/stack.csAn abstract class Stack - without data representation - with a non-abstract ToggleTop method.

  • Detailed rules - some are surprising

    • Abstract classes

      • can be derived from a non-abstract class

      • do not need not to have abstract members

      • can have constructors

    • Abstract methods

      • are implicitly virtual

Go to exerciseA specialization of Stack
Go to exerciseCourse and Project classes