Win a copy of Escape Velocity: Better Metrics for Agile Teams this week in the Agile and Other Processes forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
  • Campbell Ritchie
  • Liutauras Vilda
  • Tim Cooke
  • Paul Clapham
  • Jeanne Boyarsky
  • Ron McLeod
  • Frank Carver
  • Junilu Lacar
Saloon Keepers:
  • Stephan van Hulst
  • Tim Moores
  • Tim Holloway
  • Al Hobbs
  • Carey Brown
  • Piet Souris
  • Frits Walraven
  • fred rosenberger

Possibly misleading Master Exam question

Ranch Hand
Posts: 173
Firefox Browser Fedora Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hello all,
This is a question from master exam -1.
How we can deduce is in player package or not without looking at
source file,It is also possible to make a class and create the appropriate directory structure ...
and one more mistake using cpjar instead of mp.jar...

Question is as follows:

Given that the MusicPlayer project is on a UNIX system and consists of the following files:
Inside mp.jar file the structure is:
You are currently in the directory
and the CLASSPATH is set to
What command(s) can you use to invoke the class player.MusicPlayer? (Choose all that
Correct Answer
E: java -cp classes player.MusicPlayer
H: java -cp /mp/jars/cp.jar player.MusicPlayer
Posts: 9697
Android Google Web Toolkit Hibernate IntelliJ IDE Spring Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
This question has been asked before, you can try to search it. The answer is that the structure of the jar file is your clue that MusicPlayer is in player package. The directory structure in a jar has to be correct for the jar to work. In some cases on the exam you have to assume that things will work fine. Like in this case you'll have to assume that the jar is valid. Like if you get a question which has a code fragment where line numbers are starting from 5 or 10 (or any number other than 1), then you can assume that there are necessary import statements to make the code work (in case line numbers start from 1 then you know you'll have to check imports too)...
Or we might never have existed at all. Freaky. So we should cherish everything. Even this tiny ad:
The trailboss has a kickstarter
    Bookmark Topic Watch Topic
  • New Topic