pointers are the variable which stores the address of another variable.

A variable declaration is a math or programming term. A variable is an unnamed component. In the problem the wording will declare what the value of the variable is.

a method is a variable

...are important things in programming.

Example:

extern int variable; /* declaration */

int variable= 8; /* definition with initialization */

In programming, select case statement is a way to test the inside of a variable. It is used when one knows there is a limited number of things that can be in the variable.