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Only 32% of Java developers really know Java

prostoalex writes "Research firm Gartner draws attention to the fact that less than a third of people who put Java on their resume actually know their stuff. The knowledge gap between someone who can successfully write a System.out.println() and someone capable of designing and implementing a complex Java system brings to companies being back-logged with pending projects."

19 of 220 comments (clear)

  1. How shocking... by davegaramond · · Score: 4, Insightful

    How shocking this news is to me, because it confirmed a survey report I just read yesterday: that 68,015% people lie in their resumes!

  2. They all know Java by davegaramond · · Score: 4, Funny

    Actually, the report is wrong. They just don't read the resumes carefully. The other 68% actually know *Javanese* Java, not Sun Java.

  3. Only 0% of editors proofread their articles. by Anonymous Coward · · Score: 5, Funny

    "The knowledge gap between someone who can successfully write a System.out.println() and someone capable of designing and implementing a complex Java system brings to companies being back-logged with pending projects."

    We also would have accepted: Only 26% of submitters to Slashdot can create proper sentences.

  4. In other news... by sepluv · · Score: 4, Funny
    Researchers suggest that "less than a third of people who put something on their resume know anything about it". News at 11...

    Also "99% of researchers and statisticians have no idea what they are talking about and don't know what research means"

    --
    Joe Llywelyn Griffith Blakesley
    [This post is in the public domain (copyright-free) unless otherwise stated]
  5. Not at all suprised by smari · · Score: 5, Interesting

    Java was the popular thing of it's time. If you didn't know it at the apogee of the internet bubble, you didn't get a job in the computer idustry; it's a lot easier to say that you know it, and hope that you never have to use it. I for one hope that I don't have to write Java code again...

    Now things are pointing similarly towards C# and .NET - buzzwords rule the market from the big business' point of view.

    However, those who really know their stuff normally stick to the older languages... hype is good in some ways, but in the grand scheme of things, it's the older, better stuff that will prevail.

    1. Re:Not at all suprised by 4of12 · · Score: 4, Insightful

      those who really know their stuff

      More than buzzword compliant resumes, I've been more interested in people who could show me nice looking code and explain it intelligently to an audience that includes people with varying levels of expertise.

      I figure that anyone sharp enough to have picked up one language and set of libraries and used it well can just as well do it again.

      That said, I can see the temptation to use stupid HR tactics to try to screen out smokeblowers. Problem is that it's difficult to devise a system that simple, where a non-expert in HR can turn a crank and cull the dolts from the field with perfect accuracy (it's like defending against spam). You're likely to let posers through the gates (false positives) and cull out an occassional gem that looks unpolished (false negative).

      There's a good reason people resort to informal social networks for recruiting (that is, asking around if anyone knows anyone that's good and looking for a new position) - it's because the crank turning procedures are so unsatisfying.

      --
      "Provided by the management for your protection."
    2. Re:Not at all suprised by AJWM · · Score: 4, Insightful

      I figure that anyone sharp enough to have picked up one language and set of libraries and used it well can just as well do it again.

      Close but not quite. You're as likely to find that they end up using whatever new language you throw at them as if it were some weird dialect of the only one they know well.

      My rule of thumb if I'm looking for someone that needs to be able to pick up a new language is to find someone that knows at least three different ones (and I wouldn't count C++, Java and C# as three -- one and a half, maybe), or two if they're different enough.

      My first two computer languages were Algol and APL, I've since been paid to write programs in about a dozen other languages and written toy programs in another ten or so. Heck, except for short term contract jobs, I've often ended up developing software in some language other than the one I was originally hired for.

      It's tough being on the hiring end too -- if I've got project deadlines looming and I'm given a foot-high stack of resumes to look through to pick out a few candidates to interview, I'm sorry but my first pass through the stack is to going to be to find any reason at all to not look at a given resume any further, so I can shrink the pile that I actually have to read and think about. I may end up throwing out a gem but as long as there's still one left in the pile I look at, that doesn't matter. (Well, not to me, I know it matters to the one I threw out.)

      Yeah, the whole resume/HR/interview process sucks, and it's one of the least efficient ways to find a job (or a good candidate), but alas most tech types are even worse at social networking, at least with the kind of people one needs to to get the job.

      --
      -- Alastair
  6. Well, I'm relieved... by Green+Light · · Score: 4, Funny

    I see that I'm not the only one!

    --
    "Send an Instant Karma to me" - Yes
  7. It's True. by dmorin · · Score: 5, Insightful
    I am the first line interviewer at my company. I ask Java programming questions that I consider easy (like tricking people into trying to store a primitive in a collections object, or knowing how to determine if a bit is set). Sad to say most people fail. Some fail spectacularly.

    For the record I do NOT ask those boring certification style questions that you'd only know the answer to by memorizing the spec. All the questions we ask start with "here's a problem, now solve it with real Java code, please." If I've learned one thing, it's if somebody groans and complains that writing code is so trivial you shouldn't even ask it, then sit there and force them to write code because chances are they can't.

    1. Re:It's True. by GypC · · Score: 5, Insightful

      The real skill is recognizing and choosing the best ways to solve problems with a computer in a given paradigm (OO, Functional, etc). Languages are easy to pick up, and almost all programmers (except maybe C) have a manual on their desk.

      Memorizing the nitpicky details or anything more than basic syntax is worthless. I'm sure Dr. Knuth would fail your little test. He wouldn't bother memorizing stuff that is easy to look up.

      I managed to get a job doing BASIC programming with little knowledge of BASIC. I knew C, C++, PASCAL, Perl, Python, and sh. It took me maybe 2-3 days to become comfortable with BASIC. Now I'm one of the best programmers they've ever had, and I'm cleaning up a lot of their old crap code written by people who sure knew BASIC, but couldn't design a readable program to save their own lives. I'm talking GOTOs every other line.

      Every good programmer with a background in OO languages worth hiring would be able to pick up Java in a very short time. You're probably weeding out a lot of real talent.

      Now go back to pretending you're a real programmer and getting your jollies mocking people who can't write a bunch of Java code off the tops of their heads without a manual to look at, yet dare to apply for a developer postition!

    2. Re:It's True. by Jmstuckman · · Score: 5, Insightful
      Now, I'm assuming that the original poster was giving this test to people who put Java on their resume. (Otherwise, why bother?) The first example he gave (testing a bit) could be done with simple boolean operators that are the same in many other languages. (there might be a better way but this is one...) The second problem (boxing/unboxing) is something that any Java developer with experience should be able to do in their sleep, because it is a VERY common operation.

      If I'm appling for a C++ development job and I put C++ on my resume, isn't it fair to ask me to, say, write a simple class definition without looking up the syntax? If I can't do it, then I must not have programmed in the language much at all, and I have no business putting C++ on my resume. In theory, the resume's supposed to be for languages you know, not languages that you could learn.

  8. 32% are any good? by bluGill · · Score: 5, Informative

    Knowing Java is very different from knowing programming. If you can't do a complex project in Java you can't do a complex project in any language. If you can do it in any language, you can do it in Java. The first step might be learning Java, but any good programmer can handle that in a short time. Now granted I'd want someone who knows all the tricks on the team so I don't re-implement the wheel, but a complex project by definition requires many people so that isn't an issue.

    HR is far too hung up on what you have already done, not realizing that the data structures and algorithms are what counts, and they are the same in any language.

    1. Re:32% are any good? by peterdaly · · Score: 4, Insightful

      I agree with your statements if a distinction is added between procedural and object oriented languages.

      I have seen too many "old school" developers who havn't the foggiest idea about OO who think they can code in Java because they know the syntax.

      All languages are not equal.

    2. Re:32% are any good? by Haeleth · · Score: 4, Informative

      I am a C coder by trade... I like functional programming because its what I do 5 days a week eight hours a day

      Um, if you're a C coder, then you are not doing functional programming, you are doing procedural programming. Functional programming means languages like Lisp, ML, and Haskell.

  9. Code-completion interviewer by Latent+Heat · · Score: 4, Interesting
    I am of the mind that asking technical questions are fair interview questions -- I mean what are you supposed to ask in an interview for a technical job?

    On the other hand, most of us mortals don't store all the details of API's in our heads. Back in the Stone Age we used manuals and in the Information Age we use the SUN Web site. If your interview objective is to see how someone would get the information to solve the problem, that is fine, but if your objective is to see if that person already has some narrow set of information, you are going to exclude some capable people.

    I am mainly a Delphi developer (I should say a Delphi component developer), and my Java experience is only 4 months old, and gee, my Java experience is limited to using JNI to allow a Delphi ActiveX component to invoke an extension module written in Java and using a class loader so that extension module can be reloaded while the ActiveX component is still running.

    I don't know the answer to your question about Java collection objects without looking it up, although I have enough sense to know that you have to use Object wrappers for value types in collections and then have to cast those objects back to their original types when you pull Object references out of collections -- I know that from "wasting" time reading Slashdot.

    I guess I would fail your interview.

  10. This article is just an advertisement... by tcopeland · · Score: 4, Insightful
    ...for Compuware's software. For example, from the article:

    "Highly skilled and experienced Java developers are quick to recognise the value of MDA..."

    where "MDA" is Compuware's acronym for "buy our software and generate all your code". And since "highly skilled developers recognise the value", anyone who doesn't "recognise the value" and buy their product is an unskilled dolt.
  11. Whooha! Gartner is right this time! by KamuSan · · Score: 5, Insightful

    This is exactly my experience. I've been developing in Java for about 8 years and I think I met just 10 other people who really know their Java. And of those 10 people just about 2 or 3 are able to design an enterprise class application.

    It's not just Java developers, in the booming years a lot of people were hired by IT consulting firms here (NL) that shouldn't be near any computer at all. I've seen system engineers who studied politicology and got an MCSE who don't know the most basic thing about Windows and are not able to solve any problem at all. I've met tens of 'project managers' who don't know anything about IT and even less about software development and are too stubborn to listen to people who do know their shit.

    The worst of all are VB 'programmers' who are just able to point and click a basic application, but don't have any feeling for what a programmer should be able to do.

    The worst is title inflation. Every donkey is a 'software engineer' these days, and if you are able to actually design a piece of software you should call yourself 'architect', otherwise people won't take you seriously.
    Because 'programmers' are seen as monkeys that type and are doing a trick that every other monkey can do. :-(

  12. Was this an article... by azuroff · · Score: 4, Insightful

    ... or an advertisement for OptimalJ?

    This has resulted in a tremendous backlog of projects," says Aad Van Schetsen, Compuware sales director for application development and integration solutions in the Europe, Middle East, Africa region.

    Ben van Niekerk, Compuware SA product manager, says locally the backlog is mainly in projects to integrate new applications into Java legacy code.

    Van Schetsen says the key to the success of tools such as Compuware's OptimalJ is their use of a model-driven architecture

    Tools like OptimalJ ensure best practices and standards as well as enable companies to leverage the core capabilities of their developers by allowing them to focus on applications and not the underlying technologies.

    "Although we are still in the education phase, particularly with less experienced Java developers and development companies, momentum is gradually growing with OptimalJ sales increasing threefold in the past financial year."

  13. This is nothing new... by tsvk · · Score: 4, Funny

    As long as there are people putting "I know CHMOD and Upload/Download" on their resumes, I guess anything is possible....