Question

state the rule for framing variables​

Answer 1

All variable names must begin with a letter of the alphabet or an underscore(_). After the first initial letter, variable names can also contain letters and numbers. Variable names are case sensitive. No spaces or special characters are allowed.

Answer 2

Answer:

The names of variables in the C++ language are referred to as identifiers. The best naming convention is to choose a variable name that will tell the reader of the program what the variable represents. Variables that describe the data stored at that particular memory location are called mnemonic variables.

Rules for naming variables:

Variable names in Visual C++ can range from 1 to 255 characters. To make variable names portable to other environments stay within a 1 to 31 character range.

All variable names must begin with a letter of the alphabet or an

underscore( _ ). For beginning programmers, it may be easier to begin all variable names with a letter of the alphabet.

After the first initial letter, variable names can also contain letters and numbers. No spaces or special characters, however, are allowed.

Uppercase characters are distinct from lowercase characters. Using all uppercase letters is used primarily to identify constant variables.

You cannot use a C++ keyword (reserved word) as a variable name.

Explanation:

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