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Class variable information


In class-based, object-oriented programming, a class variable is a variable defined in a class of which a single copy exists, regardless of how many instances of the class exist.[1][2][3][4][5]

A class variable is not an instance variable. It is a special type of class attribute (or class property, field, or data member). The same dichotomy between instance and class members applies to methods ("member functions") as well; a class may have both instance methods and class methods.

  1. ^ "The Java Tutorial, Variables". Retrieved 2010-10-21.
  2. ^ "The Java Tutorial, Understanding Instance and Class Members". Retrieved 2010-10-21.
  3. ^ "The Python Language Reference, Compound Statements". Retrieved 2010-10-21.
  4. ^ "Objective-C Runtime Reference". Apple Developer. Retrieved 1 April 2018.
  5. ^ "Class Variables in C#". Syntaxdb. Retrieved 1 April 2018.

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Class variable

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Member variable

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Static variable

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Variable shadowing

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Immunoglobulin class switching

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Imperative programming

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is a class variable. // ------------------------- int numeric; }; #endif A constructor operation is a function with the same name as the class name....

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Automatic differentiation

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evaluateAndDerive(self, variable): partial = 1 if self == variable else 0 return ValueAndPartial(self.value, partial) class Plus(Expression): def __init__(self...

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Metasyntactic variable

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placeholder class name, due to the German word for "class" being "Klasse". In the following example the function name foo and the variable name bar are...

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