AP CSA Unit 2 Day 12: Debugging Loop Condition

February 6, 2026

Unit 2, Selection & Iteration • Cycle 2

Day 12 Advanced Practice • Harder Difficulty

Focus: Loop Bounds Hard Debugging (Loop condition)

Advanced Practice Question

Format: Debugging (Loop condition)

A programmer wants to print all integers from 1 to 5 inclusive. Which change fixes the code?

int i = 0;
while (i <= 5) {
    System.out.print(i + " ");
    i++;
}

Difficulty: Hard | Topic: Debugging (Loop condition) | Cycle: 2 (Advanced)

Why This Answer?

The current loop stops when i becomes 5, so it prints 1–4. Using `i <= 5` includes 5.

Common Mistake

Watch Out!

Changing the loop type without fixing the condition doesn't guarantee correctness.

AP Exam Strategy

For "inclusive" loops, check whether your condition should use `<` or `<=`.

This Cycle 2 HARD question tests loop bounds. Review Unit 2 concepts to build mastery of selection and iteration.

Cycle 2 questions prepare you for the hardest AP CSA exam questions.