Question

in a C language variable cannot contain?
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Answer 1

A variable name can only have letters (both uppercase and lowercase letters), digits and underscore. The first letter of a variable should be either a letter or an underscore.

Answer 2

Answer:

Explanation:

Variable in C language:

A variable is nothing more than a name given to a storage space that is accessible to our applications. Each variable in C has a unique type that specifies its memory size and organization, the range of values that can be placed inside, and the range of operations that can be performed on the variable.

A variable's name can include letters, numbers, and the underscore character. Either a letter or an underscore must come first. Because C is case-sensitive, uppercase and lowercase letters are separate.

Rules for Naming a variable in C:

• The variable's name cannot start with a digit.
• A variable name may contain letters, numbers, or even unique symbols like the underscore ( ).
• Keywords like "float," "int," and similar terms are not permitted in a variable name.
• The variable name cannot contain any blanks or spaces.
• The C language is case sensitive, and it treats lowercase and uppercase letters extremely differently. The variable name is often kept in lower case.

Hence in a C language variable cannot contain Blank or Spaces.

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