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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 in pitch. [38] This is similar to the language name of C++, where "++" indicates that a variable should be incremented by 1 after being evaluated.
C# is case sensitive and all C# keywords are in lower cases. Visual Basic and C# share most keywords, with the difference being that the default Visual Basic keywords are the capitalised versions of the C# keywords, e.g. Public vs public, If vs if. A few keywords have very different versions in Visual Basic and C#:
C# has and allows pointers to selected types (some primitives, enums, strings, pointers, and even arrays and structs if they contain only types that can be pointed [14]) in unsafe context: methods and codeblock marked unsafe. These are syntactically the same as pointers in C and C++. However, runtime-checking is disabled inside unsafe blocks.
Comparison of C# and Visual Basic .NET; ... BlockComment [c] Visual Basic .NET ' InlineComment ''' InlineComment (XML documentation comment) Rem InlineComment. #If ...
C# (programming language), a programming language pronounced as "C-sharp" Topics referred to by the same term This disambiguation page lists articles associated with the title C-sharp .
C. C Sharp (programming language) C Sharp 2.0; Comparison of C Sharp and Java; Comparison of C Sharp and Visual Basic .NET; C Sharp syntax; Callable object; Centripetal Catmull–Rom spline; Closure (computer programming) Code folding; Command pattern; Comparison of programming languages (list comprehension) Composite pattern; Composition over ...
Macro languages may be restricted to acting on specially labeled code regions (pre-fixed with a # in the case of the C preprocessor). Alternatively, they may not, but in this case it is still often undesirable to (for instance) expand a macro embedded in a string literal , so they still need a rudimentary awareness of syntax.
In C#, it is possible to enforce a reference with the ref keyword, similar to C++ and in a sense to C. This feature of C# is particularly useful when one wants to create a method that returns more than one object. In Java trying to return multiple values from a method is unsupported unless a wrapper is used, in this case named "Ref". [65]