Unit 2 Cycle 2 Day 23: Iteration (while-loop tracing)
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Unit 2, Selection & Iteration • Cycle 2
Day 23 Advanced Practice • Harder Difficulty
Focus: Loop Termination
Hard
Iteration (while-loop tracing)
Advanced Practice Question
Format: Iteration (while-loop tracing)
What is printed?
What is printed?
"apcs-keyword">int x = "apcs-number">10;
"apcs-keyword">int c = "apcs-number">0;
"apcs-keyword">while (x > "apcs-number">0)
{
x -= "apcs-number">4;
c++;
}
System.out.println(c);
Difficulty: Hard |
Topic: Iteration (while-loop tracing) |
Cycle: 2 (Advanced)
Why This Answer?
x goes 10→6→2→-2, so the loop runs 3 times and prints 3.
Common Mistake
Watch Out!
Stopping at x=2 and forgetting the loop runs one more time before x becomes ≤ 0.
AP Exam Strategy
The condition is checked before each iteration; updates happen inside.
Master This Topic
This Cycle 2 HARD question tests loop termination. Review Unit 2 concepts to build mastery of selection and iteration.
- Understanding loop termination
- 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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