Variables in coding

No matter what computer languages you are coding, you have to know variables. I am going to discuss about variables in this essay.

1. Initialization of variables 

 Any variable can be initialized during definition. If a variable is not initialized explicitly, the value stored in this variable can be any. Implicit is not used.

Global variable initialization is performed only once

Static variable initialization is performed only once

Local variable initialization is made every time you call the corresponding functions

2. Visibility scope and lifetime of variables (Access to variables)

 There are two basic types of scope: local scope and global scope

2.1 Access to variables

Access to variables can be done from anywhere in the program. These variables are located in the global pool of memory, so their lifetime coincides with the lifetime of the program.

 A variable declared locally, is located on the stack, and the lifetime of such a variable is equal to the lifetime of the function.