Question

state the rules to be followed in form
ing variable names​

Answer 1

Rules for naming variables:

1. All variable names must begin with a letter of the alphabet or an. underscore( _ ). ...
2. After the first initial letter, variable names can also contain letters and numbers. ...
3. Uppercases characters are distinct from lowercase characters. ...
4. You cannot use a C++ keyword (reserved word) as a variable name.