Category:Special variables

Tasks in this category demonstrate application and utilization of special variables. These are variables that have a reserved special meaning within a computer program.

Types of special variables

Depending on the programming language being used, there are generally two types of special variable:

Control variables

Control variables contain operational parameters used within the program. These variables can be modified to control the way that the program will behave.

Informative variables

Informative variables provide information about current status within the program. These special variables are generally read only and cannot be directly modified by assignment from within the program.