1Z0-829 Handling Exceptions Practice Question
Which TWO statements about try-with-resources are correct? (Choose two.)
⚠ Common exam trap
Test-takers frequently confuse the closing order with declaration order or mistakenly think `Closeable` is required instead of `AutoCloseable`, leading them to select options B or C.
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
✓
Resources are closed in the reverse order of their declaration.
The Java Language Specification (JLS §14.20.3) mandates that resources declared in a try-with-resources statement are closed in the reverse order of their declaration. This ensures that if a resource depends on another declared earlier, the dependent resource is closed first, preventing resource leaks or inconsistent states.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Resources are closed in the reverse order of their declaration.
Why this is correct
Correct; last declared resource closed first.
- ✗
Resources are closed in the same order as their declaration.
Why it's wrong here
Incorrect; reverse order.
- ✗
Resources declared in try-with-resources must implement the Closeable interface.
Why it's wrong here
They must implement AutoCloseable, not necessarily Closeable (though Closeable extends AutoCloseable).
- ✗
Resources declared earlier in the try clause are closed first.
Why it's wrong here
Incorrect; resources are closed in reverse order.
- ✓
If an exception is thrown from the try block and another from a resource's close() method, the try block exception propagates and the close() exception is added as a suppressed exception.
Why this is correct
The try exception is primary, close exceptions are suppressed.
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