what are keywords? can keywords be used as identifiers?
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Keywords are predefined, reserved wordsused in programming that have special meanings to the compiler. Keywords are part of the syntax and they cannot be usedas an identifier.
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→ An index term, subject term, subject heading, or descriptor, in information retrieval, is a term that captures the essence of the topic of a document. Index terms make up a controlled vocabulary for use in bibliographic records.
→ A keyword cannot be used as an identifier. It should not contain any whitespace character. The name must be meaningful.
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