OCP 17 Study Guide Chapter 5 Review Question 14

[Vishal Singh Adhikari]

Why is every online Java compiler showing only 2 errors while JShell is showing 4 errors. I understand the solution clearly that the correct answer is 4 errors but still I was curious. If someone can help see the attached screenshot.

[Mikalai Zaikin]

Hi Vishal !
Welcome to CodeRanch!
Apparently JShell provides more accurate report.
You should address your question to the creators of the online service, indeed there are more problems than 2.
Also, I am not sure if exam really will ask you questions like: how many lines are invalid (at least there was no such pattern on older exams)
Best regards,
MZ

[Vishal Singh Adhikari]

So the thing is these online compilers are just displaying the output of "javac" from OpenJDK which I confirmed by compiling this program in my local javac and that shows 2 errors too.

So by chance, a question comes like this in the exam which asks for the total lines with errors do I need to answer it according to javac or JShell?

[Ankit Garg]

As Mikalai mentioned, there is generally an option which says the code won't compile, but it won't ask how many lines won't compile. The creators of the exam make extra effort to make questions which are not ambiguous (or dependent on compiler behavior like this).

[Jeanne Boyarsky]

They may also ask if a given line compiles. We ask for # of lines or first line to make our questions harder and you to be better prepared. And we use javac as the source of truth. (Sometimes IDEs give different counts as well)