Controlling Program Flow →hardMultiple ChoiceObjective-mapped

1Z0-829 Nested loops Practice Question

Exhibit

Refer to the exhibit.

public class LoopTest {
    public static void main(String[] args) {
        outer:
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                if (i + j > 3) {
                    break outer;
                }
                System.out.print(i + j + " ");
            }
        }
    }
}

Given the following Java code:

```java

for (int i = 0; i <= 2; i++) {
    for (int j = i; j <= i+2; j++) {
        if (j <= 3) {

System.out.print(j + " ");

}
    }
}

```

What is the output?

⚠ Common exam trap

The trap here is that candidates miscount the number of iterations or misjudge the inner loop's termination condition, often thinking the inner loop runs from 0 to i+2 instead of from i to i+2, leading to sequences like 0 1 2 0 1 2 0 1 2 or adding extra values.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

0 1 2 1 2 3 2 3

The program uses nested for loops. The outer loop iterates i from 0 to 2 (inclusive). For each i, the inner loop iterates j from i to i+2 (inclusive), but due to a condition that prevents printing values greater than 3, the inner loop effectively prints j only up to 3. Thus, for i=0 it prints 0,1,2; for i=1 it prints 1,2,3; for i=2 it prints 2,3. Combined on one line, the output is '0 1 2 1 2 3 2 3', which corresponds to option B.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
0 1 2 1 2 3 2 3 4
Why it's wrong here
4 is not printed because break outer occurs before printing.
✓
0 1 2 1 2 3 2 3
Why this is correct
Correct sequence as per execution.
✗
0 1 2 1 2 3 2 3 4 5
Why it's wrong here
Includes extra numbers.
✗
0 1 2 1 2 3 2 3 3 4
Why it's wrong here
Extra numbers from inner loop.

Go deeper

1Z0-829 Nested loops Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

Related to this question