Java Chapter 5 Loops Self-Test Questions and Answers 100% Pass

Java Chapter 5 Loops Self-Test
Questions and Answers 100% Pass
What type of loop is best when the number of iterations is known beforehand?


✔✔A) for loop


B) while loop

C) do-while loop

D) infinite loop




Which loop executes at least once, regardless of the condition?

A) for loop

B) while loop


✔✔C) do-while loop


D) foreach loop




What will happen if the condition in a while loop is always true?

A) The loop will execute only once


✔✔B) It will result in an infinite loop


C) The program will not compile

1

,D) Java will automatically stop it




Which statement is used to terminate a loop immediately?


✔✔A) break


B) continue

C) return

D) exit




What is the purpose of the continue statement in a loop?

A) It terminates the loop

B) It skips the entire loop execution


✔✔C) It skips the current iteration and moves to the next


D) It forces the loop to end immediately




Which of the following loops is best for iterating over an array?

A) while loop


✔✔B) for-each loop


C) do-while loop


2

,D) switch loop




What is the key difference between a while loop and a do-while loop?


✔✔A) do-while executes at least once, even if the condition is false


B) while executes at least once before checking the condition

C) while always executes at least twice

D) do-while cannot contain a break statement




Which loop is most suitable when the number of iterations is unknown?

A) for loop


✔✔B) while loop


C) for-each loop

D) switch statement




What is the output of the following code?




```java

int i = 0;


3

, while (i < 3) {

System.out.print(i + " ");

i++;

}

```




A) `3 2 1`

B) `3 3 3`


✔✔C) `0 1 2`


D) `1 2 3`




What will happen if the update statement in a for loop is missing?


✔✔A) It may result in an infinite loop


B) It will execute only once

C) It will cause a compilation error

D) The loop will never execute




Which keyword is used to exit from multiple nested loops?


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