Question 1easymultiple choice
Full question →- A
4
Why wrong: Printing double shows decimal.
- B
4.0
Integer division yields 4, stored as double.
- C
Compilation error
Why wrong: Code compiles fine.
- D
4.5
Why wrong: Would need one operand to be double.
Question 342 of 509
Quick Answer
The correct output is 4.0. This happens because integer division truncation in Java discards any fractional remainder when both operands are integers, so 9 divided by 2 yields exactly 4, not 4.5. The result is then implicitly widened to a double during assignment, producing 4.0 rather than 4.5. On the Oracle Java Foundations 1Z0-811 exam, this question tests your understanding of how Java handles arithmetic between primitive types, specifically the rule that division between two ints always produces an int result, regardless of the target variable type. A common trap is assuming the double variable will force floating-point division, but the division operation is evaluated before assignment, using the operands’ types. To remember this, think: “Integer division first, then assignment—no magic conversion during the math.”
1Z0-811 Primitives, Strings and Operators Practice Question
This 1Z0-811 practice question tests your understanding of primitives, strings and operators. 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.
A developer writes: int a = 9; int b = 2; double result = a / b; System.out.println(result); What is the output?
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
✓
4.0
Option A is correct because integer division truncates the fractional part; 9/2 = 4, then assigned to double gives 4.0. Option B is wrong because no explicit cast. Option C is wrong because integer division does not produce 4.5. Option D is wrong because division is performed before assignment.
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.
- ✗
4
Why it's wrong here
Printing double shows decimal.
- ✓
4.0
Why this is correct
Integer division yields 4, stored as double.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Compilation error
Why it's wrong here
Code compiles fine.
- ✗
4.5
Why it's wrong here
Would need one operand to be double.
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
Command / output trap
Printing double shows decimal.
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.
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Primitives, Strings and Operators — study guide chapter
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FAQ
Questions learners often ask
What does this 1Z0-811 question test?
Primitives, Strings and Operators — This question tests Primitives, Strings and Operators — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: 4.0 — Option A is correct because integer division truncates the fractional part; 9/2 = 4, then assigned to double gives 4.0. Option B is wrong because no explicit cast. Option C is wrong because integer division does not produce 4.5. Option D is wrong because division is performed before assignment.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on 1Z0-811
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Given: int a = 9; int b = 2; double c = a / b; System.out.println(c); What is the output?
easy- A.4.5
- ✓ B.4.0
- C.4.0
- D.4
Why B: Integer division truncates decimal part, so 9/2 = 4, then assigned to double gives 4.0.
Last reviewed: Jun 23, 2026
This 1Z0-811 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-811 exam.
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