This week's book giveaway is in the Artificial Intelligence and Machine Learning forum.
We're giving away four copies of Transfer Learning for Natural Language Processing (MEAP) and have Paul Azunre on-line!
See this thread for details.
Win a copy of Transfer Learning for Natural Language Processing (MEAP) this week in the Artificial Intelligence and Machine Learning forum!

Christopher Collier

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since Feb 16, 2011
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Recent posts by Christopher Collier

Thanks Jeanne that's priceless info to me.
9 years ago
I was hoping someone could give me advice on how to get started in the field. I'm working toward with SCJP and finishing off my B.S. right now, but don't have any hands on experience. My basic questions are:

1) How did you get your first job with Java/related technologies? In I.T.? I've been working for seven years, but it's all in the financial sector with some very limited IT work (installing check scanners, performing remote maintenance, relaying problems to software vendors). This is hard to translate to a resume as IT "experience".

2) I had hoped to get into mobile stuff and do work with Android, but now that I've been coding and reading, I'm leaning a little more towards web stuff, dealing with servers, JSP, etc. Which technologies should I delve more specifically to get started with either of these?

3) What's good to know in general? I live in the Washington D.C. area and searched keywords of jobs related to Java in the area. The big buzzwords that come up a lot seem to be: Spring, Hibernate, Oracle, SQL, and Javacript. Would learning more about these specific technologies be a good idea for someone that still hasn't chosen a specific direction?

4) I want to delve into some code that's been written and work backwards through it. Can anyone point me to some good resources that they like for open source stuff that might have stuff more geared towards beginners?

I know some of this is very general, but I'd appreciate any input.

9 years ago
That depends a lot on how you feel about tests. I agree with above that if you DO study, focusing on your weaker topics can help. For me though, I like to do some easy stuff to build up my confidence, thus taking the edge off the anxiety.

Henry Wong wrote:

Christopher Collier wrote:
If e1.e = e3 and e3 is later set to null, this means that e1.e = null right?

No. Of course not. When you set the e1.e reference to point to the same object as the e3 reference, they are two different references that point to the same object. It doesn't tie the two references together, to be always pointing to the same thing.


Thanks Henry.
I originally thought that your assertion of Lost lost = e1.e.e would work was wrong, but I've coded it and it works. I'm confused now.

If e1.e = e3 and e3 is later set to null, this means that e1.e = null right? Then how can there be a e1.e.e if e1.e = null?

I'd appreciate clarification because I remember not understanding this problem in the K&B text.

Thanks. That's exactly the information I needed.

Juanita Dailey wrote:Hello Everyone,

Just reading through the access modifiers and almost done with Chapter one. Just curious as to why you would want to use the protected access modifier from a practical standpoint. Can anyone think of a real world example of why we would use this?

I'm sorry to say that I'm really far from having real world experience in Java.

Do you have a job with in programming and find that you don't use package access? I'm interested in this topic as well. Thanks.

Hey everyone, I'm going through chapter 3 in K&B and I've noticed that I'm running across more and more binary, octal, and hexadecimal stuff. I feel like this would have gotten removed from the exam with the bit shift operators and the like. Does anyone know if this stuff is going to be covered in the current incarnation of the exam?


Hi Francois and welcome!

I'm studying K&B and am on chapter 3 right now. I'm reading everything very slowly and making question and answer index cards of the stuff that I think might be tricky so I can be quizzed on it later.

After reading the chapter, I do the self-test (I got pretty bad scores on the first two chapters...).

I would say to everyone to make sure to write lots and lots of code. There have been times when I've caught myself just reading and reading without writing any code. For me, it really helps to keep the IDE fired up with a test class open and just plug in the stuff from the book, throwing minor variations here and there. It slows you down, but I feel that it helps me absorb the information sooo much more easily.

If anyone is open to virtual study or Q&A sessions, I'm definitely game. If anyone is interested, can you post your time zone so we can coordinate? I'm east-coast USA.

Hi Akila,
Sorry for the late response. I've been out of town w/o my laptop.

I had a similar problem and got it resolved in this thread:
my classpath post

Javin Paul helped me a lot and he links to his blog in there. I'd recommend giving it a read and seeing if it helps.

Still, I'd like to offer my help. Do you have an IDE installed or are you running Java from the command line?


Sandra Bachan wrote:Hello,

You are not allowed calculators, cell phones, wallets, papers, pens, etc.. You would be lucky to get a rest room break if you are polite to the testing center.

I say call few days ahead, say who you are and what test you will be taking. That helps to create rapport.

There's goes coffee before the exam for me then...
Hey everyone,
I just started preparing too and I'm actually on the second chapter of the K&B book as well.

As far as installing the JDK, which OS are you running? I had problems with it too. If you can provide some more information, I can probably tell you some of what you SHOULDN'T do if you want it to work
That helps, thanks.

I read your blog and got a lot of useful information out of it. Good stuff.