1Z0-811 Object-Oriented Programming Practice Question
A developer wants to prevent a method from being overridden. Which modifier should be used?
⚠ Common exam trap
Oracle often tests the distinction between 'hiding' (for static methods) and 'overriding' (for instance methods), leading candidates to incorrectly choose `static` because they confuse hiding with preventing overriding.
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
✓
final
The `final` modifier prevents a method from being overridden in a subclass. When a method is declared as `final`, any attempt to override it in a subclass results in a compile-time error, ensuring the method's implementation remains unchanged.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
private
Why it's wrong here
Private methods are not inherited, so technically not overridden; but final is explicit.
- ✗
abstract
Why it's wrong here
Abstract methods must be overridden.
- ✓
final
Why this is correct
Final methods cannot be overridden.
- ✗
static
Why it's wrong here
Static methods can be hidden but not overridden; but final is the direct answer.
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