1Z0-811 Control Flow and Loops Practice Question
A junior developer wrote a while loop that never terminates. What is the most likely cause?
⚠ Common exam trap
Candidates often think a break statement always causes termination, but in this context, a break would actually prevent an infinite loop, not cause it.
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
✓
The loop condition is always true
A while loop terminates only when its boolean condition evaluates to false. If the condition is always true, the loop will run indefinitely, causing an infinite loop. In Java, this typically happens when the loop variable is not updated or the condition logic is flawed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The loop condition is always true
Why this is correct
If the condition never evaluates to false, the loop continues indefinitely.
- ✗
The loop variable is incremented correctly
Why it's wrong here
Correct increment would help the loop terminate.
- ✗
The loop uses a for structure
Why it's wrong here
The loop structure itself does not cause infinite loops; it's the condition.
- ✗
The loop body contains a break statement
Why it's wrong here
A break statement would terminate the loop, not cause it to run forever.
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