Which statement legally declares, constructs, and initializes a one-dimensional int array in Java?

Difficulty: Easy

Correct Answer: int myList [] = {4, 3, 7};

Explanation:


Introduction / Context:
Array initialization in Java can be done succinctly using an initializer list, which both constructs and fills the array. The syntax must match the array type and dimensionality.



Given Data / Assumptions:

  • We are creating an int[] and immediately providing values.


Concept / Approach:
The correct pattern is: type[] name = { v1, v2, ... };. Characters in single quotes are chars, not ints (though chars can convert to int, the example uses the wrong literal intent). Tuple-like parentheses are not Java syntax. Multi-dimensional declarations must match initializer shapes.



Step-by-Step Solution:

Option D → int myList [] = {4, 3, 7}; correct declaration and initialization.Option A → uses char literals '1', etc.; even if convertible, it does not express integer numeric literals as intended.Option B → invalid tuple syntax in Java.Option C → declares a 2D array but provides a 1D initializer → mismatch.


Verification / Alternative check:
Print myList.length and elements after Option D; results reflect the three specified ints.



Why Other Options Are Wrong:
They use invalid syntax or mismatched dimensionality/literal types.



Common Pitfalls:
Using parentheses instead of braces; confusing char and int literals; mismatching array dimension with initializer structure.



Final Answer:
int myList [] = {4, 3, 7};

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