File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes Boonie's Exam: 47 - mistake?? Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of REST with Spring (video course) this week in the Spring forum!
JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
Bookmark "Boonie Watch "Boonie New topic

Boonie's Exam: 47 - mistake??

Alfred Kemety
Ranch Hand

Joined: Aug 14, 2002
Posts: 279
In Boonie's Exam part 3, question 47 is answered wrong I think, actually there is no right choice in the choices it has. It goes
What appears in the standard output when you run the Dots class?

a- nothing
b- 100 dots (.)
c- 200 dots (.)
d- 100 dashes (-)
e- 100 dots (.) and 100 dashes(-)
His answer was:
Question 47: a. The thread's with start() method is never invoked. (This is not an applet, so init() is not automatically invoked.) (See chapter 12.)
Ah, well first of all, the code will never compile since the class Dots that implements the Runnable interface didn't supply an implementation for the abstract run() method in the interface Runnable and thus should be declared abstract itself... or the code won't compile, right?? or am I missing something?

Alfred Raouf - Egypt - SCJP 1.4<br />Kemety.equals(Egyptian) // returns true
Barry Gaunt
Ranch Hand

Joined: Aug 03, 2002
Posts: 7729
I agree with you, Dots has no run() method, and is
not declared abstract. So it's not gonna compile!
I guess Boonie skipped his beta testing...

Ask a Meaningful Question and HowToAskQuestionsOnJavaRanch
Getting someone to think and try something out is much more useful than just telling them the answer.
Jose Botella
Ranch Hand

Joined: Jul 03, 2001
Posts: 2120
You are right. It will not compile.

SCJP2. Please Indent your code using UBB Code
I agree. Here's the link:
subject: Boonie's Exam: 47 - mistake??
jQuery in Action, 3rd edition