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In C#, class methods, indexers, properties and events can all be overridden. Non-virtual or static methods cannot be overridden. The overridden base method must be virtual, abstract, or override. In addition to the modifiers that are used for method overriding, C# allows the hiding of an inherited property or method.
Due to the C++ language not having a dedicated keyword to declare interfaces, the following C++ example uses inheritance from a pure abstract base class. For most purposes, this is functionally equivalent to the interfaces provided in other languages, such as Java [4]: 87 and C#. [5]: 144
override - Specifies that a method or property declaration is an override of a virtual member or an implementation of a member of an abstract class. readonly - Declares a field that can only be assigned values as part of the declaration or in a constructor in the same class.
These are detailed in a terminology resembling that of design by contract methodology, leading to some restrictions on how contracts can interact with inheritance: Preconditions cannot be strengthened in the subtype. Postconditions cannot be weakened in the subtype. Invariants cannot be weakened in the subtype. History constraint (the "history ...
It is distinct from single inheritance, where an object or class may only inherit from one particular object or class. Multiple inheritance has been a controversial issue for many years, [1] [2] with opponents pointing to its increased complexity and ambiguity in situations such as the "diamond problem", where it may be ambiguous as to which ...
They claim that inheritance often breaks encapsulation, given that inheritance exposes a subclass to the details of its parent's implementation. [11] As described by the yo-yo problem, overuse of inheritance and therefore encapsulation, can become too complicated and hard to debug.
4. Take the tax break if you’re entitled to it. An inherited IRA may be taxable, depending on the type. If you inherit a Roth IRA, you’re free of taxes.
C# (/ ˌ s iː ˈ ʃ ɑːr p / see SHARP) [b] is a general-purpose high-level programming language supporting multiple paradigms.C# encompasses static typing, [16]: 4 strong typing, lexically scoped, imperative, declarative, functional, generic, [16]: 22 object-oriented (class-based), and component-oriented programming disciplines.