Beginner Compilers & Programming Language Theory
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What is a token in compiler design?

Correct! Well done.

Incorrect.

The correct answer is B) A classified unit of source code — a (token-type, value) pair produced by the lexer

B

Correct Answer

A classified unit of source code — a (token-type, value) pair produced by the lexer

Explanation

Tokens: keyword (if, while), identifier (x, myVar), literal (42, "hello"), operator (+, ==), delimiter (;, {). The token stream abstracts away whitespace and enables grammar-based parsing.

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