Find the valid identifier from the following
(a) Tot$balance (b) TRUE (c) 4thdata (d) break
Answers
Valid Identifiers:
(a) Tot$balance
(b) TRUE
In most programming languages, including C, C++, and many others, valid identifiers have certain rules and restrictions. Here are the valid identifiers among the given options:
(a) Tot$balance: Valid identifier. It consists of letters, digits, and underscores, and it can start with a letter or underscore.
(b) TRUE: Valid identifier. In this case, it's all in uppercase, and the rules for identifiers usually allow for uppercase letters, lowercase letters, digits, and underscores. However, it's worth noting that in some programming languages, TRUE might be a reserved keyword for boolean values, and using it as an identifier could lead to conflicts.
(c) 4thdata: Not a valid identifier. Identifiers cannot start with a digit.
(d) break: Not a valid identifier. "break" is a reserved keyword in C and many other programming languages, used for loop control statements.
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