AP CSA Unit 2 Day 11: Iteration Nested Loop Count

February 6, 2026

Unit 2, Selection & Iteration • Cycle 2

Day 11 Advanced Practice • Harder Difficulty

Focus: Nested Loop Count Hard Iteration (nested loop count)

Advanced Practice Question

Format: Iteration (nested loop count)

What is printed?

int count = 0;
for (int i = 0; i < 3; i++) {
    for (int j = 0; j < 4; j++) {
        count++;
    }
}
System.out.println(count);

Difficulty: Hard | Topic: Iteration (nested loop count) | Cycle: 2 (Advanced)

Why This Answer?

Outer loop runs 3 times. Inner loop runs 2 times each outer iteration. Total increments = 3 × 2 = 6.

Common Mistake

Watch Out!

Multiplying the wrong bounds (like 3 × 3) or missing that inner loop is `<= 2` (two iterations).

AP Exam Strategy

Count inner iterations first, then multiply by outer iterations.

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

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