Global variable

Definition

A global variable is a variable that is declared outside any methods or blocks. It can be accessed from anywhere in the program.

Related terms

Namespace: A namespace is an abstract container that holds variables, functions, and other identifiers. Global variables belong to the global namespace.

Modifiability: Global variables are prone to being modified from multiple parts of the program which can lead to unexpected behavior if not managed carefully.

Initialization:

The process of assigning an initial value to a variable at the time it is declared.