Unit 2 Cycle 2 Day 17: Boolean Precedence (&& with ||)
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Unit 2, Selection & Iteration • Cycle 2
Day 17 Advanced Practice • Harder Difficulty
Focus: Operator Precedence
Hard
Boolean Precedence (&& with ||)
Advanced Practice Question
Format: Boolean Precedence (&& with ||)
What is printed?
What is printed?
"apcs-keyword">int a = "apcs-number">4;
"apcs-keyword">int b = "apcs-number">5;
"apcs-keyword">boolean r = (a < b) && (a + b == "apcs-number">9) || (a == "apcs-number">0);
System.out.println(r);
Difficulty: Hard |
Topic: Boolean Precedence (&& with ||) |
Cycle: 2 (Advanced)
Why This Answer?
`a < b` is true and `a + b == 9` is true, so `(true && true)` is true. `a == 0` is false. `true || false` is true.
Common Mistake
Watch Out!
Forgetting that `&&` is evaluated before `||` unless parentheses change it.
AP Exam Strategy
If you're unsure, rewrite as: `((a < b) && (a + b == 9)) || (a == 0)`.
Master This Topic
This Cycle 2 HARD question tests operator precedence. Review Unit 2 concepts to build mastery of selection and iteration.
- Understanding operator precedence
- Tracing code execution accurately
- Avoiding common pitfalls
Ready for More Challenges?
Cycle 2 questions prepare you for the hardest AP CSA exam questions.
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