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 method contains a try-with-resources statement that uses two resources: a FileInputStream and a BufferedInputStream. The FileInputStream constructor throws a FileNotFoundException. Which statement about resource closing is true?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
No resources are closed because the FileInputStream constructor failed before any resource was opened.
In a try-with-resources statement, resources are closed only if they have been successfully initialized. If the FileInputStream constructor throws a FileNotFoundException, the resource is never created, so the try-with-resources statement does not attempt to close it. The BufferedInputStream is never constructed because the exception occurs before its declaration is reached, so no resources are opened and none need to be closed. Therefore, option C is correct.
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.
✗
The BufferedInputStream is closed if it was successfully created, but the FileInputStream is not.
Why it's wrong here
The BufferedInputStream is declared second and would not be opened if the first failed.
✗
Both resources are closed even if the FileInputStream constructor throws an exception.
Why it's wrong here
Only successfully opened resources are closed.
✓
No resources are closed because the FileInputStream constructor failed before any resource was opened.
Why this is correct
The first constructor threw an exception, so no resource was opened.
Related concept
Read the scenario before looking for a memorised answer.
✗
The programmer must explicitly close the resources in a finally block.
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume all declared resources are always closed, forgetting that the try-with-resources statement only closes resources that were successfully created, and an exception during construction of the first resource prevents the second from even being declared.
Detailed technical explanation
How to think about this question
Under the hood, the try-with-resources statement compiles to a try-finally block that calls close() on each resource in reverse order of declaration, but only if the resource variable was assigned a non-null reference. If a constructor throws an exception, the variable is never assigned, so close() is never called. This behavior is specified in JLS §14.20.3.1, and it prevents resource leaks when initialization fails partway through.
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 practitioner preparing for the 1Z0-829 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
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: No resources are closed because the FileInputStream constructor failed before any resource was opened. — In a try-with-resources statement, resources are closed only if they have been successfully initialized. If the FileInputStream constructor throws a FileNotFoundException, the resource is never created, so the try-with-resources statement does not attempt to close it. The BufferedInputStream is never constructed because the exception occurs before its declaration is reached, so no resources are opened and none need to be closed. Therefore, option C is correct.
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.
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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