The answer is a compilation error, because a final method cannot be overridden in a subclass. In Java, the `final` keyword on a method explicitly prevents any subclass from providing a new implementation; this is a core design constraint that enforces invariant behavior across an inheritance hierarchy. When `SavingsAccount` attempts to override `withdraw()`, the compiler detects the violation and refuses to compile the code. On the Oracle Java Foundations 1Z0-811 exam, this concept frequently appears in questions about inheritance and polymorphism, often as a trick where a subclass tries to hide or redefine a parent’s `final` method. A common trap is confusing method overriding with method overloading—remember that `final` only blocks overriding, not overloading. To lock it in, think of the mnemonic: "Final forbids a follow-up."
1Z0-811 Object-Oriented Programming Practice Question
This 1Z0-811 practice question tests your understanding of object-oriented programming. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A banking application has a base class 'Account' with a method 'withdraw()' marked as final. A subclass 'SavingsAccount' tries to override 'withdraw()'. What is the outcome?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Compilation error because final methods cannot be overridden
A final method cannot be overridden in a subclass. Attempting to do so results in a compilation error.
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.
✓
Compilation error because final methods cannot be overridden
Why this is correct
Correct. final methods cannot be overridden; attempting to do so causes a compile-time error.
Related concept
Read the scenario before looking for a memorised answer.
✗
The override works only if SavingsAccount is in the same package
Why it's wrong here
Package does not affect the final modifier; final methods cannot be overridden regardless of package.
✗
The override succeeds, final is ignored in subclasses
Why it's wrong here
The final keyword explicitly prevents overriding.
✗
Runtime error when the method is called
Why it's wrong here
The error occurs at compile time, not runtime.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Keyword trap
The final keyword explicitly prevents overriding.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 1Z0-811 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 1Z0-811 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Object-Oriented Programming — This question tests Object-Oriented Programming — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Compilation error because final methods cannot be overridden — A final method cannot be overridden in a subclass. Attempting to do so results in a compilation error.
What should I do if I get this 1Z0-811 question wrong?
Identify which 1Z0-811 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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