Definitions for "Class variable"
A variable that is shared among all instances of a class. Class variables are indicated by the use of the static keyword. If an instance of a class updates a class variable, it is updated for all instances of that class.
in some SAS procedures, a variable used to group, or classify, data. Class variables can be character or numeric. Class variables can have continuous values, but they typically have a few discrete values that define the classifications of the variable.
a variable that is shared by every instance of an object instantiated from that class
Keywords:  ideal, way
an ideal way to do that