- A
Surround the entire loop with a try-catch block that catches IOException and NumberFormatException using multi-catch, logs once, and allows the loop to continue.
Why wrong: If exception occurs, control jumps out of the loop, not continue.
- B
Inside the loop, wrap the calls in a try-catch that catches Exception, logs, and continues.
Why wrong: Too broad; may catch unintended exceptions.
- C
Declare the method to throw IOException and NumberFormatException and let the caller handle them.
Why wrong: Does not allow per-record continuation and logging.
- D
Inside the loop, wrap the readNextRecord() and processID() calls in a try-catch block that catches IOException and NumberFormatException separately, logs the exception, and continues.
Correct: isolates each iteration and catches specific exceptions.
Quick Answer
The correct approach is to place a try-catch block inside the loop that catches IOException and NumberFormatException separately, logs each exception, and then allows the loop to continue. This works because exception handling in a loop to continue on failure requires the try-catch structure to be inside the loop body, not outside it; if the try-catch surrounded the entire loop, any unhandled exception would break out of the loop entirely, halting batch processing. On the Oracle Certified Professional Java SE 17 Developer 1Z0-829 exam, this pattern tests your understanding of exception propagation within iterative structures and the importance of granular error recovery—a common trap is wrapping the whole loop in a single try block, which fails the requirement to continue processing subsequent records. Remember the memory tip: “Catch inside, not outside—keep the loop alive.”
1Z0-829 Handling Exceptions Practice Question
This 1Z0-829 practice question tests your understanding of handling exceptions. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
You are developing a batch processing application that reads records from a CSV file and parses each row into an integer ID. The reading method readNextRecord() returns a String and can throw IOException and NumberFormatException. The method processID(int id) processes the ID. The entire process runs in a for loop over 10,000 records. The requirement is that if any record fails (either due to file read error or parsing), the loop must continue to the next record, but the exception must be logged for later review. Which approach best achieves this requirement?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Inside the loop, wrap the readNextRecord() and processID() calls in a try-catch block that catches IOException and NumberFormatException separately, logs the exception, and continues.
Option D is correct because it places a try-catch block inside the loop that catches IOException and NumberFormatException separately, logs each exception, and then continues to the next iteration. This ensures that a failure in reading or parsing any single record does not terminate the loop, and each exception is logged individually for later review, meeting the requirement precisely.
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.
- ✗
Surround the entire loop with a try-catch block that catches IOException and NumberFormatException using multi-catch, logs once, and allows the loop to continue.
Why it's wrong here
If exception occurs, control jumps out of the loop, not continue.
- ✗
Inside the loop, wrap the calls in a try-catch that catches Exception, logs, and continues.
Why it's wrong here
Too broad; may catch unintended exceptions.
- ✗
Declare the method to throw IOException and NumberFormatException and let the caller handle them.
Why it's wrong here
Does not allow per-record continuation and logging.
- ✓
Inside the loop, wrap the readNextRecord() and processID() calls in a try-catch block that catches IOException and NumberFormatException separately, logs the exception, and continues.
Why this is correct
Correct: isolates each iteration and catches specific exceptions.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think catching a broad Exception or wrapping the entire loop in a try-catch is sufficient, but they overlook the requirement that the loop must continue after each failure, which demands the try-catch be inside the loop, not outside.
Detailed technical explanation
How to think about this question
In Java, checked exceptions like IOException and NumberFormatException must be handled or declared. Placing the try-catch inside the loop ensures that each iteration is independent; if an exception occurs, the catch block logs it (e.g., using a Logger) and the continue statement (or simply reaching the end of the catch block) resumes the next iteration. This pattern is common in batch processing where fault tolerance is critical, and logging each failure separately allows for post-processing analysis without halting the entire job.
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.
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Handling Exceptions — study guide chapter
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FAQ
Questions learners often ask
What does this 1Z0-829 question test?
Handling Exceptions — This question tests Handling Exceptions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Inside the loop, wrap the readNextRecord() and processID() calls in a try-catch block that catches IOException and NumberFormatException separately, logs the exception, and continues. — Option D is correct because it places a try-catch block inside the loop that catches IOException and NumberFormatException separately, logs each exception, and then continues to the next iteration. This ensures that a failure in reading or parsing any single record does not terminate the loop, and each exception is logged individually for later review, meeting the requirement precisely.
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: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This 1Z0-829 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-829 exam.
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