Java interview and exam

Hi guys,
I have an interview and exam for Java programming job tomorrow.
I have been told the exam is on the syntax of the core API.
Has anybody else done similar exams for a job? Any advice?
Anybody got any ideas what sort of thing they put on these exams.
Any help/suggestions would be great.
Many thanks
alex

I have been told the exam is on the syntax ofthe
core API.That means he's taking one of the basic examswritten
by a few different companies, and used by many
different companies.I would say that most small/medium sized companies
writes their own tests... but I might be totally
wrong. You might be right, I'm just going off my personal experience, and granted it's most doubtly less than yours.
>
And he gives the impression he
just graduated with a CS degree. This isn't for a
Senior Developer position. I saw that, but he might be applying for a position
as a UI programmer, server programmer, etc. There are
just so many different positions to apply for, and
the tests wouldn't look the same. I would never ask a
Swing related question if I was looking for a server
programmer. The phrase "syntax of the core API" is what I've been going by and I'm just trying to help him out, I could certaainly be wrong.
>
The exam will be similar to the Sun Certification
exam (google for mock SCJP exams). Could be, but we can't be sure about that, since that
is more a test about the syntax of the language, and
some basic knowledge. E.g SCJP for 1.4 does not ask
any UI related question.True, we can't be sure, I am just making an educated guess.
>
Don't be nervous, chances are you'll have noproblems
with the exams and it will come down to the actual
interview. Just be yourself, be honest and showsome
personality. You'll be fine.I agree on this. Be honest when you are there. Tell
them that the test was hard if you think that (since
the will find that out anyway), and do also tell them
what you have done, and what you are good at, but
don't exaggerate.
/KajHey common ground! So at least the OP can feel confident about this advice.
OP Good Luck!!!

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    Some packages in je.4.0.103.jar and db.jar (version 5.1) contain the same naming structure and same classes eg. com.sleepycat.persist.EntityStore. I removed the duplicated packages in je.4.0.103.jar However it seems that the implementation is slightly different between the two version as I get
    java.lang.NoSuchMethodError: com.sleepycat.persist.EntityStore.<init>(Lcom/sleepycat/je/Environment;Ljava/lang/String;Lcom/sleepycat/persist/StoreConfig;)V
    When I simply had both versions available my code for the native version kept using the packages from the Java edition and the external library kept on using the native version and as a result I got loads of runtime errors.
    So how do I tell them apart. The problem is because both sets of packages have identical names and class names so Java does not know which ones to use. I am using eclipse so maybe there is some option where I can tell certain classes to use certain packages.
    Any ideas?

    Hi,
    We don't officially support using BDB and BDB JE from the same JVM process.
    It's possible to work around this limitation by creating two [url http://download.oracle.com/javase/1.4.2/docs/api/java/lang/ClassLoader.html] Java Classloaders  that load one of the two jar files. When calling BDB or BDB JE methods, the call must be bracketed with calls like this that cause the correct classloader to be used:
    ClassLoader saveLoader = Thread.currentThread().getContextClassLoader();
    Thread.currentThread().setContextClassLoader(/* specify correct loader for BDB or BDB JE here */);
    try {
       // do something with BDB or BDB JE
    } finally {
      Thread.currentThread().setContextClassLoader(saveLoader);
    }We are not experts on classloaders and we don't have an example of doing this. We have not done it ourselves, we only know that users have done it.
    I hope this helps.
    Regards,
    Alex Gorrod
    Oracle Berkeley DB

  • Compatibility issues between Berkeley DB Java Edition and Berkeley DB

    We are trying to use both Berkeley DB Java Edition and Berkeley DB (Java/C) in one of our projects. However, they share the common classes (i.e. EntryDingin.java), but with their own different impementation. Is there any reason that they have to share the same names/packages? Can we request to have the shared java classes going into different packages?
    Thanks
    Yao

    Hello Yao,
    You're correct and the DB and JE products were not designed to run under the same classloader in the same JVM. It is very unlikely that we'll be changing the package names, since that would be very disruptive and yet have no value for the overwhelming majority of users. We will note your request, however, for future reference.
    The two workarounds I know of are:
    1. Use a separate classloader for the use of each product.
    2. Use a tool such as jarjar links (http://code.google.com/p/jarjar/) to rename the packages in one or both of the products.
    Option 2 is not something we (the JE team members) have experience with, but it was used successfully by a JE user. The user also pointed out a bug in the jarjar tool to be aware of: http://code.google.com/p/jarjar/issues/detail?id=21
    --mark                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

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