1Z0-811 Control Flow and Loops Practice Question
A developer writes a loop that iterates over an array of integers. The loop should stop when it encounters a negative number. Which control flow construct best achieves this?
⚠ Common exam trap
Candidates often confuse 'continue' (which skips to the next iteration) with 'break' (which exits the loop entirely), leading them to incorrectly select Option D when they need to stop the loop upon encountering a negative number.
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 loop with break inside if condition
A for loop with a break statement allows the developer to iterate over an array of integers and immediately exit the loop when a negative number is encountered. The break statement terminates the loop's execution unconditionally, making it the most direct and readable control flow construct for this requirement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
do-while loop
Why it's wrong here
Does not provide an early exit mechanism without additional logic.
- ✓
for loop with break inside if condition
Why this is correct
Correctly exits the loop when negative number is encountered.
- ✗
enhanced for loop with return
Why it's wrong here
Return exits the method, which is not appropriate for just stopping the loop.
- ✗
while loop with continue
Why it's wrong here
Continue skips the current iteration but does not exit the loop.
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