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class name definition «inheriting from parentclass». «interfaces: interfaces.» method_and_field_declarations endclass. class name implementation. method_implementations endclass. interface name . members endinterface.
C# features a late bound dynamic type that supports no-reflection dynamic invocation, interoperability with dynamic languages, and ad-hoc binding to (for example) document object models. The dynamic type resolves member access dynamically at runtime as opposed to statically/virtual at compile time.
Microsoft first used the name C# in 1988 for a variant of the C language designed for incremental compilation. [37] That project was not completed, and the name was later reused. C-sharp musical note. The name "C sharp" was inspired by the musical notation whereby a sharp symbol indicates that the written note should be made a semitone higher ...
[citation needed] Examples of strictly object-based languages – supporting an object feature but not inheritance or subtyping – are early versions of Ada, [2] Visual Basic 6 (VB6), and Fortran 90. Some classify prototype-based programming as object-based even though it supports inheritance and subtyping albeit not via a class concept.
Object-oriented programming (OOP) is a programming paradigm based on the concept of objects. [1] Objects can contain data (called fields , attributes or properties ) and have actions they can perform (called procedures or methods and implemented in code ).
In languages that support delegation via method lookup rules, method dispatching is defined the way it is defined for virtual methods in inheritance: It is always the most specific method that is chosen during method lookup.
The listed languages are designed with varying degrees of OOP support. Some are highly focused in OOP while others support multiple paradigms including OOP. [1] For example, C++ is a multi-paradigm language including OOP; [2] however, it is less object-oriented than other languages such as Python [3] and Ruby. [4]
In object-oriented programming (OOP), object lifetime is the period of time between an object's creation and its destruction. In some programming contexts, object lifetime coincides with the lifetime of a variable that represents the object.