Quick Answer
The correct answer is `int[] data = generate();`. This statement works because the method `generate()` is declared with a return type of `int[]`, meaning it returns an array of integers, and the variable `data` is declared with the matching type `int[]` to hold that returned array. In Java, when you call a method that returns an array, you must assign it to a reference variable of the exact same array type—here, `int[]`. On the Oracle Java Foundations 1Z0-811 exam, this question tests your understanding of method return types and proper assignment syntax, a common topic in the "Working with Methods" section. A frequent trap is trying to assign the result to a single `int` variable or forgetting the square brackets in the declaration. Remember the memory tip: "Return type and variable type must match—brackets on both sides of the assignment."
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 'public static int[] generate() { int[] result = new int[10]; for (int i = 0; i < result.length; i++) result[i] = i * 2; return result; }' is defined. Which statement correctly calls this method and stores the result?
int[] data = generate();
Correct assignment of int array variable.
int[] data = new int[generate()];
Why wrong: generate() returns an array, not a size.
int data = generate();
Why wrong: Cannot assign int[] to int.
generate();
Why wrong: Does not store the returned array.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
int[] data = generate();
Option A is correct because the method `generate()` returns an `int[]` (an array of integers), and the assignment `int[] data = generate();` correctly declares a reference variable of type `int[]` and assigns the returned array to it. The method is static, so it can be called directly from a static context without an instance.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
int[] data = generate();
Why this is correct
Correct assignment of int array variable.
Related concept
Read the scenario before looking for a memorised answer.
int[] data = new int[generate()];
Why it's wrong here
generate() returns an array, not a size.
int data = generate();
Why it's wrong here
Cannot assign int[] to int.
generate();
Why it's wrong here
Does not store the returned array.
Common exam traps
Oracle often tests the distinction between array type and primitive type in method return values and variable declarations, trapping candidates who confuse `int[]` with `int` or who forget that a method call must assign the result to a compatible variable to be useful.
Detailed technical explanation
In Java, arrays are objects, and a method returning `int[]` returns a reference to the array object. The assignment `int[] data = generate();` stores that reference in the variable `data`, allowing access to the array elements. The `length` field of the array is set at creation time (here, 10), and the loop fills it with even numbers from 0 to 18. This pattern is common when generating or populating data structures in utility methods.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Arrays and Methods — This question tests Arrays and Methods — Read the scenario before looking for a memorised answer..
The correct answer is: int[] data = generate(); — Option A is correct because the method `generate()` returns an `int[]` (an array of integers), and the assignment `int[] data = generate();` correctly declares a reference variable of type `int[]` and assigns the returned array to it. The method is static, so it can be called directly from a static context without an instance.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 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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