Dangling Else Problem Quiz
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Questions and Answers

What is the dangling else problem?

  • A syntax error in programming languages
  • An optional else clause in an if-then statement resulting in ambiguous nested conditionals (correct)
  • A problem with the interpretation of if-else statements
  • An issue with the execution of if-then-else statements
  • What does it mean for the reference context-free grammar of the language to be ambiguous?

  • The grammar lacks if-then-else statements
  • The grammar is not context-free
  • The grammar is incorrect
  • There is more than one correct parse tree (correct)
  • In which forms can one write conditionally executed code in many programming languages?

  • if-else and switch-case
  • while and for loops
  • if-then and if-then-else (correct)
  • try-catch and throw
  • When does the ambiguity in interpretation arise in nested if-then-else statements?

    <p>When an if-then form appears as s1 in an if-then-else form</p> Signup and view all the answers

    What does the presence of the dangling else problem result in?

    <p>More than one correct parse tree</p> Signup and view all the answers

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