What is Variables and Rules of Declaring Variables in C++.

What is Variable?

Variable is a named memory location.It is used to store program's input data and its results during execution.

Value of a Variable may be changed during the program execution but name can not be changed.

The Variables are created in RAM(Random Access Memory).RAM is a temporary memory.

The data stored in RAM is also temporary.

Rules for Declaring Variables in C++.

Some important rules of variables are:

1. A variable consists of a number,latter or underscore( _ ).
2. First character must be latter or underscore.
3. Spaces are not allowed between variable name.
4. Uppercase and Lowercase both are allowed.
5. Keywords C++ are not allowed as variable name.
6. A variable consists of 31 character.
7. One variable can be declared for one data type.

Symbols can not be used as variable name.


Tags:
#c language compiler  #best cs programs   #c development
#how to code in c   #computer programmer   #software developer
#php programmer     #it programs
#computer programming certification
#c++ programs examples   #c++ programs download  #c++ programs pdf
#c++ programs with output   #c++ programs for beginners
#c++ programs download for windows 7   #c++ programs list
#operators in c programming   #what is structured programming
#c language data types    #computer programming keywords
#variable types in c      #variables in computer programming
#types of variables in computer programming    #c language data types