- A
return result; where result is an int variable
Why wrong: Returns an `int` variable, which is a primitive, not an `int[]` array. This causes a compile-time error because the return type is `int[]`.
- B
return new int[n];
Creates an integer array of length `n` and returns it. This is both syntactically and semantically valid for the method `generateSequence`.
- C
return 0;
Why wrong: Returns an `int` literal `0`, which is a primitive, not an array. This causes a compile-time error.
- D
return new int[0];
Creates an integer array of length `0` and returns it. This is syntactically valid because the return type is `int[]`; the length does not affect validity.
Question 301 of 509
1Z0-811 Arrays and Methods Practice Question
This 1Z0-811 practice question tests your understanding of arrays and methods. 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 method is declared as: public static int[] generateSequence(int n) { ... }. Which return statement is valid inside this method?
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
✓
return new int[n];
The method's return type is `int[]`, meaning it must return a reference to an integer array. Option B, `return new int[n];`, creates an array of length `n` and returns it, which is valid. Option D, `return new int[0];`, also creates an integer array (of length 0) and returns it, which is syntactically valid as well. Options A and C are invalid because they return primitive `int` values, not `int[]` references. Therefore, both B and D are correct return statements.
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.
- ✗
return result; where result is an int variable
Why it's wrong here
Returns an `int` variable, which is a primitive, not an `int[]` array. This causes a compile-time error because the return type is `int[]`.
- ✓
return new int[n];
Why this is correct
Creates an integer array of length `n` and returns it. This is both syntactically and semantically valid for the method `generateSequence`.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
return 0;
Why it's wrong here
Returns an `int` literal `0`, which is a primitive, not an array. This causes a compile-time error.
- ✓
return new int[0];
Why this is correct
Creates an integer array of length `0` and returns it. This is syntactically valid because the return type is `int[]`; the length does not affect validity.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Oracle often tests the distinction between primitive types and array types, trapping candidates who think returning a single `int` or a literal `0` is acceptable because they overlook the `[]` in the return type.
Detailed technical explanation
How to think about this question
In Java, arrays are objects, and `new int[n]` allocates a contiguous block of memory for `n` integers, initializing each element to the default value `0`. The method signature `public static int[] generateSequence(int n)` expects an array reference; returning `new int[n]` satisfies this by providing a reference to a newly created array. A subtle behavior is that `new int[0]` is also valid and returns a zero-length array, which is a distinct object with `length == 0`—this is often used in APIs to avoid returning `null`.
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 1Z0-811 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.
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FAQ
Questions learners often ask
What does this 1Z0-811 question test?
Arrays and Methods — This question tests Arrays and Methods — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: return new int[n]; — The method's return type is `int[]`, meaning it must return a reference to an integer array. Option B, `return new int[n];`, creates an array of length `n` and returns it, which is valid. Option D, `return new int[0];`, also creates an integer array (of length 0) and returns it, which is syntactically valid as well. Options A and C are invalid because they return primitive `int` values, not `int[]` references. Therefore, both B and D are correct return statements.
What should I do if I get this 1Z0-811 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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Last reviewed: Jul 4, 2026
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