Question 18 of 481
1Z0-811 Arrays and Methods Practice Question
Which TWO are valid ways to pass an array to a method in Java?
⚠ Common exam trap
Candidates often confuse array initializer syntax with array creation syntax, mistakenly thinking `int[] {1,2,3}` or `new int[5] {1,2,3,4,5}` are valid, when Java requires either a declaration with an initializer or an anonymous array creation with `new` and no size specifier.
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
✓
myMethod(new int[]{1,2,3});
`new int[]{1,2,3}` is an anonymous array creation expression that creates a new int array and passes it directly to the method. This syntax is valid in Java for passing an array literal without a variable. Option B is correct because it declares an array variable `arr` initialized with an array initializer `{1,2,3}` (which is allowed only in a declaration statement) and then passes that reference to the method, which is a standard way to pass an array.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
myMethod(new int[]{1,2,3});
Why this is correct
This option demonstrates an anonymous array creation and initialisation. The syntax `new int[]{1,2,3}` allows for the inline instantiation of an `int[]` object directly within the method call, without requiring a separate variable declaration. The newly created array, populated with the specified elements, is then passed immediately as an argument to `myMethod`. This is a valid and frequently utilised mechanism for passing an array to a method in Java, satisfying the question's requirement.
- ✓
int[] arr = {1,2,3}; myMethod(arr);
Why this is correct
Passing the array reference.
- ✗
myMethod(1, 2, 3);
Why it's wrong here
Method expects an array, not individual ints.
- ✗
myMethod(int[] {1,2,3});
Why it's wrong here
Missing 'new' keyword; should be new int[]{1,2,3}.
- ✗
myMethod(new int[5] {1,2,3,4,5});
Why it's wrong here
Cannot specify size when using initializer.
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Last reviewed: Jun 25, 2026
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