What are the key features of the static storage class?

Question

Accepted Answer

Static storage class is used to declare variables that retain their values throughout the program execution.

Variables declared with static storage class have a lifetime that extends for the entire duration of the program.
They are initialized only once, at the start of the program execution.
Static variables are stored in the data segment of the memory.
They are not destroyed when a function is exited, allowing their values to be preserved for future function calls.
Static storage class can be used to share data between multiple function calls.

Accepted Answer

static variable retain its value between the function calls and static variable default value o.

static specified function that function calling only inside the same file