Main Page | See live article | Alphabetical index In computer science's object-oriented programming, class variables (static fields) contain information which is associated with all instances of a class. If all tanks have one cannon, then it is not necessary to specify, in an instance variable for each tank object, that each tank has only one cannon; rather, one can simply define a class variable which does this and thus all instances of the class will share the variable. See also: class method, instance variable This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.