Tokens In C programming language, tokens are the basic building blocks of a program. Tokens can be classified into several categories, and one important category is identifiers. Identifiers : -Identifiers are names used to identify variables, functions, types, labels, etc. Rules for identifiers in C: Must start with a letter (a-z or A-Z) or underscore (_). Can be followed by letters, digits (0-9), or underscores. Cannot be a keyword. Case-sensitive (e.g., "my Variable" and "my variable" are different identifiers). Keywords : -Keywords are reserved words with predefined meanings in the C language. Total 32 Keywords in C. Examples: if, else, for, while, int, char, etc. ...
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