How many tokens will be generated by the scanner for the following statement ?…

Solution:

Tokenize the statement x = x * (a + b) - 5; by listing each identifier, operator, parenthesis, literal, and the semicolon as separate tokens.

1. identifier 'x'

2. assignment operator '='

3. identifier 'x'

4. multiplication operator '*'

5. left parenthesis '('

6. identifier 'a'

7. plus operator '+'

8. identifier 'b'

9. right parenthesis ')'

10. subtraction operator '-'

11. numeric literal '5'

12. semicolon ';'

Total tokens: 12.

Note: Each identifier, operator, parenthesis, literal, and punctuation mark (like the semicolon) is treated as a separate token by a typical scanner.