1Z0-829 Handling Exceptions Practice Question
A developer is implementing a method that reads a file and parses its contents. The method should ensure that any resources opened during the process are properly closed, even if an exception occurs. Which approach guarantees resource closure with minimal code?
⚠ Common exam trap
Watch out — candidates often think a finally block is always required for resource cleanup, but try-with-resources implicitly provides that guarantee with less code and better exception handling, making it the preferred approach in modern Java.
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
✓
Use try-with-resources with the resource declared in the try clause.
Try-with-resources automatically closes any resource that implements `AutoCloseable` (or `Closeable`) at the end of the try block, regardless of whether an exception occurs. This guarantees resource closure with minimal code, as the developer does not need to write explicit `close()` calls or manage finally blocks.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use try-with-resources with the resource declared in the try clause.
Why this is correct
Try-with-resources ensures automatic closure regardless of exceptions.
- ✗
Use a try-catch block and close the resource inside the catch block.
Why it's wrong here
Closing in catch only handles exceptions, not normal completion.
- ✗
Use a try block followed by a finally block without catch.
Why it's wrong here
Missing catch may cause unhandled checked exceptions.
- ✗
Use a try-catch-finally block and call close() in the finally block.
Why it's wrong here
Explicit close() in finally is error-prone and requires null checks.
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