The correct answer is that the SQLException is a checked exception, and the code must handle it or declare it. This is because SQLException directly extends Exception without inheriting from RuntimeException, placing it under the checked exception category that the Java compiler strictly enforces. In the Oracle Certified Professional Java SE 17 Developer 1Z0-829 exam, this rule is frequently tested through stack trace analysis or code snippets that fail to compile due to an unhandled checked exception. A common trap is confusing SQLException with runtime exceptions like NullPointerException, which do not require explicit handling. To avoid this, remember that any exception not extending RuntimeException is checked, and the compiler will reject code that neither catches it in a try-catch block nor declares it in a throws clause. A useful memory tip: “Checked means caught or declared—no exceptions to the rule.”
1Z0-829 Handling Exceptions Practice Question
This 1Z0-829 practice question tests your understanding of handling exceptions. 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.
Exhibit
Refer to the exhibit.
```
Exception in thread "main" java.lang.RuntimeException: Error processing order
at com.example.OrderService.process(OrderService.java:25)
at com.example.OrderService.main(OrderService.java:10)
Caused by: java.sql.SQLException: Connection timeout
at com.example.db.DatabaseConnection.connect(DatabaseConnection.java:15)
at com.example.OrderService.process(OrderService.java:22)
... 1 more
```
Given the stack trace, which statement is true about the exception handling?
Refer to the exhibit.
```
Exception in thread "main" java.lang.RuntimeException: Error processing order
at com.example.OrderService.process(OrderService.java:25)
at com.example.OrderService.main(OrderService.java:10)
Caused by: java.sql.SQLException: Connection timeout
at com.example.db.DatabaseConnection.connect(DatabaseConnection.java:15)
at com.example.OrderService.process(OrderService.java:22)
... 1 more
```
A
Both exceptions are checked, and the code must handle both.
Why wrong: Only SQLException is checked; RuntimeException is unchecked.
B
The RuntimeException is caused by a checked exception, so it must be declared in the throws clause.
Why wrong: RuntimeException is unchecked; it does not need to be declared. The cause being checked does not require declaration of the wrapper.
C
The SQLException is a checked exception, and the code must handle it or declare it.
SQLException is checked and must be handled or declared.
D
The RuntimeException is an unchecked exception, so it cannot be caught.
Why wrong: Unchecked exceptions can be caught; they are not required to be handled but can be.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The SQLException is a checked exception, and the code must handle it or declare it.
Option C is correct because SQLException is a checked exception (a subclass of Exception but not RuntimeException), so the Java compiler enforces that it must be either caught in a try-catch block or declared in the throws clause of the enclosing method. The stack trace indicates that an SQLException occurred, and the code must handle this checked exception to compile successfully.
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.
✗
Both exceptions are checked, and the code must handle both.
Why it's wrong here
Only SQLException is checked; RuntimeException is unchecked.
✗
The RuntimeException is caused by a checked exception, so it must be declared in the throws clause.
Why it's wrong here
RuntimeException is unchecked; it does not need to be declared. The cause being checked does not require declaration of the wrapper.
✓
The SQLException is a checked exception, and the code must handle it or declare it.
Why this is correct
SQLException is checked and must be handled or declared.
Related concept
Read the scenario before looking for a memorised answer.
✗
The RuntimeException is an unchecked exception, so it cannot be caught.
Why it's wrong here
Unchecked exceptions can be caught; they are not required to be handled but can be.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the 'must handle or declare' rule for checked exceptions with the idea that unchecked exceptions cannot be caught at all, leading them to incorrectly select Option D.
Detailed technical explanation
How to think about this question
Checked exceptions (like SQLException) are subclasses of Exception that are not subclasses of RuntimeException, and the compiler performs a compile-time check to ensure they are either caught or declared. Unchecked exceptions (like RuntimeException and its subclasses) are not subject to this compile-time check, but they can still be caught at runtime. This distinction is fundamental to Java's exception hierarchy and is tested in the 1Z0-829 exam to verify understanding of checked vs. unchecked exception handling rules.
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.
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: The SQLException is a checked exception, and the code must handle it or declare it. — Option C is correct because SQLException is a checked exception (a subclass of Exception but not RuntimeException), so the Java compiler enforces that it must be either caught in a try-catch block or declared in the throws clause of the enclosing method. The stack trace indicates that an SQLException occurred, and the code must handle this checked exception to compile successfully.
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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