Variable Scope Flashcards

The part of a program where a variable can be accessed or modified.

A variable that is declared within a subprogram and can only be accessed within that subprogram.

A variable that is declared outside of subprograms and can be accessed throughout the entire program.

They help prevent unintended changes to data and make subprograms easier to debug and maintain.

They can lead to unintended changes to data and make debugging more difficult.

Global variables are useful for storing data that needs to be accessed by multiple parts of a program.

Local variables are useful for temporary data that is only needed within a specific subprogram.

Limited to the subprogram or block of code where it is declared.

Accessible throughout the entire program, including all subprograms.

Use local variables whenever possible to reduce the risk of errors and improve program maintainability.