Explanations “Top Java Quiz Questions”

What is the output of the code snippet?

❌ A. true-false-false
❌ B. false-true-false
❌ C. true-true-true
❌ D. false-true-true
❌ E. false-false-false
✅ F. true-true-false
❌ G. None of the above

Explanation:
The first expression is evaluated from left to right since the operator precedence of & and ^ is the same, letting us reduce it to false ^ sunday, which is true, because sunday is true. In the second expression, we apply the negation operator, (!), first, reducing the expression to sunday && true, which evaluates to true. In the last expression, both variables are true so they reduce to !(true && true), which further reduces to !true, aka false. For these reasons, option F is the correct answer.

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624 viewsDec 22, 2021 at 10:36

What is the output of the code snippet?

❌ A. true-false-false
❌ B. false-true-false
❌ C. true-true-true
❌ D. false-true-true
❌ E. false-false-false
✅ F. true-true-false
❌ G. None of the above

Explanation:
The first expression is evaluated from left to right since the operator precedence of & and ^ is the same, letting us reduce it to false ^ sunday, which is true, because sunday is true. In the second expression, we apply the negation operator, (!), first, reducing the expression to sunday && true, which evaluates to true. In the last expression, both variables are true so they reduce to !(true && true), which further reduces to !true, aka false. For these reasons, option F is the correct answer.

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