Java Basics and Syntax →easyMultiple ChoiceObjective-mapped

1Z0-811 Java Basics and Syntax Practice Question

A developer wants to iterate over an array of integers named 'numbers'. Which loop declaration will correctly access each element?

⚠ Common exam trap

A common mix-up: candidates confuse the for-each syntax with other languages (like Python's 'for x in list') and choose Option C, or they mistakenly think Option B accesses elements directly when it only increments a counter.

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

✓

for (int num : numbers)

It uses the enhanced for-each loop syntax, which is designed specifically for iterating over arrays and collections in Java. The colon (:) separates the element variable declaration from the array name, and each iteration assigns the next element to 'num' automatically, without needing an index or explicit bounds checking.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
for (int num : numbers)
Why this is correct
Correct enhanced for loop syntax.
✗
for (int num = 0; num < numbers.length; num++)
Why it's wrong here
This is a traditional for loop, not an enhanced for loop.
✗
for (int num in numbers)
Why it's wrong here
'in' is not Java syntax; colon is used.
✗
for (int num : numbers.length)
Why it's wrong here
numbers.length is an int, not an array.

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1Z0-811 Java Basics and Syntax Practice Question

Why each option matters

Option-by-option breakdown

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