1Z0-811 Control Flow and Loops Practice Question
Which loop is guaranteed to execute its body at least once?
⚠ Common exam trap
Oracle often tests the distinction between pre-test and post-test loops, and the trap here is that candidates confuse the do-while loop with the while loop, assuming both can skip execution if the condition is false, or they mistakenly think Java has a 'repeat-until' loop.
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
✓
do-while loop
The do-while loop is a post-test loop, meaning the condition is evaluated after the loop body executes. This guarantees that the body runs at least once, regardless of whether the condition is initially true or false. In Java, the do-while loop syntax is `do { ... } while (condition);`.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
repeat-until loop
Why it's wrong here
Not a Java construct.
- ✗
while loop
Why it's wrong here
May not execute if condition is false.
- ✓
do-while loop
Why this is correct
Executes body then checks condition.
- ✗
for loop
Why it's wrong here
May not execute if condition is false.
Go deeper
Related to this question
About these practice questions
This 1Z0-811 question is part of Courseiva's 481-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 1Z0-811 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-811 exam.