1Z0-829 Handling Exceptions Practice Question
Which of the following is a checked exception in Java?
⚠ Common exam trap
Candidates often confuse all exception subclasses of Exception as checked, forgetting that RuntimeException and its subclasses are unchecked, and thus incorrectly select unchecked exceptions like NullPointerException or IllegalArgumentException.
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
✓
SQLException
SQLException is a checked exception because it extends Exception directly (not RuntimeException). Checked exceptions must be either caught with a try-catch block or declared in the method signature using 'throws'. SQLException is thrown by JDBC API methods when database access errors occur, forcing the developer to handle potential SQL failures at compile time.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
NullPointerException
Why it's wrong here
Unchecked.
- ✗
ArrayIndexOutOfBoundsException
Why it's wrong here
Unchecked.
- ✓
SQLException
Why this is correct
Checked exception.
- ✗
IllegalArgumentException
Why it's wrong here
Unchecked.
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