Variables And Data Types

                                        

                Variables And Data Types in C

Variables: Variable is the name of a memory location which stores some data.

Note:- a is a variable name and a value is 25;

b is a variable name b value is 'a';

Variables Rules:- 

• Variables are case sensitive
• 1st character is an alphabet or "_"
• No comma/blank space
• No other symbol other than "_"

 Variables Data Types:-

Constants:-

                    Values that don't change (fixed)