The answer is that the label `outer` is mistakenly placed on the inner loop, not the outer loop. In Java, a labeled continue statement transfers control to the next iteration of the loop identified by the label; when the label is on the inner loop, `continue outer` actually skips the current iteration of the inner loop and advances the outer loop, causing the entire row to be skipped even if the condition is only true for some values of `j`. This is a classic trap on the Oracle Certified Professional Java SE 17 Developer 1Z0-829 exam, testing your understanding of how labeled break and continue interact with nested loop structures—many candidates assume the label always refers to the outermost loop. The key is to read the label placement carefully: the label must be directly before the loop you intend to control. Memory tip: “Label the loop you want to leap, not the loop you want to leave.”
1Z0-829 Controlling Program Flow Practice Question
This 1Z0-829 practice question tests your understanding of controlling program flow. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A financial trading system uses a Java application to process market data. The core algorithm uses nested loops to compare price arrays. The developer uses a labeled continue statement to skip certain combinations. After a code review, the team suspects the algorithm has a bug that causes incorrect results. The developer writes a unit test and discovers that the labeled continue sometimes skips more iterations than intended. The code is: outer: for (int i = 0; i < prices1.length; i++) { for (int j = 0; j < prices2.length; j++) { if (prices1[i] < prices2[j]) continue outer; // process combination } } The developer intended that if any price in prices1 is less than a price in prices2, the entire row (i) should be skipped. However, the algorithm skips rows even when the condition is not met for all j. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The label outer is placed on the inner loop, not the outer loop.
Option B is correct because the label `outer` is placed on the inner loop, not the outer loop. In Java, a labeled continue statement jumps to the next iteration of the loop identified by the label. If the label is on the inner loop, `continue outer` will skip the current iteration of the inner loop and continue with the next iteration of the outer loop, which is exactly what the developer intended. However, the code as written has the label on the inner loop, so `continue outer` actually skips the entire inner loop for the current `i` and moves to the next `i`, even if the condition `prices1[i] < prices2[j]` is only true for some `j`. This causes more iterations to be skipped than intended.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
A break statement is missing after processing a combination.
Why it's wrong here
No break is needed; the algorithm is designed to skip rows on condition.
✓
The label outer is placed on the inner loop, not the outer loop.
Why this is correct
Because the label precedes the inner for, continue outer continues the inner loop, not the outer.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The condition for continuing is not correctly evaluated.
Why it's wrong here
The condition is simple comparison and is evaluated correctly.
✗
The continue outer statement should be a break outer.
Why it's wrong here
break outer would exit the outer loop entirely, not skip to the next row.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume a labeled continue always affects the outer loop, but in Java, the label must be placed on the loop you intend to continue; misplacing the label causes the continue to target the wrong loop, leading to unexpected behavior.
Detailed technical explanation
How to think about this question
In Java, a labeled continue statement transfers control to the loop iteration of the labeled loop, skipping the rest of the current iteration. If the label is on the inner loop, `continue outer` actually continues the outer loop, not the inner loop. This is a subtle but critical distinction: the label must be placed on the loop you want to continue. In this scenario, the developer likely placed the label on the inner loop by mistake, causing the outer loop to advance prematurely. A real-world analogy is a nested loop for matrix multiplication where a labeled continue is used to skip rows based on a condition; misplacing the label can lead to incorrect results that are hard to debug.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Controlling Program Flow — This question tests Controlling Program Flow — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The label outer is placed on the inner loop, not the outer loop. — Option B is correct because the label `outer` is placed on the inner loop, not the outer loop. In Java, a labeled continue statement jumps to the next iteration of the loop identified by the label. If the label is on the inner loop, `continue outer` will skip the current iteration of the inner loop and continue with the next iteration of the outer loop, which is exactly what the developer intended. However, the code as written has the label on the inner loop, so `continue outer` actually skips the entire inner loop for the current `i` and moves to the next `i`, even if the condition `prices1[i] < prices2[j]` is only true for some `j`. This causes more iterations to be skipped than intended.
What should I do if I get this 1Z0-829 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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