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Tips and Tricks When Learning Multiple Languages? 76

BoneFlower asks: "Due to early registrations scooping up most of the good electives at my school, I'm stuck with learning COBOL(required CS class at my school) and Visual Basic.NET (only useful CS elective left) at the same time. The only tips I've gotten from IRC are 'drop one' and 'Focus on COBOL only enough to pass, and put most of your effort on Visual Basic'. I'd prefer to learn both well, do any of you have any suggestions on how to do this? What aspects of each could I use to enhance the other, and what apparent similarities should I keep in mind as dangerous traps? I also have some C++ knowledge, up to basic classes and memory management, so any of that that I could use in the current classes would be useful as well."
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Tips and Tricks When Learning Multiple Languages?

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  • by elliotj ( 519297 ) <slashdot&elliotjohnson,com> on Monday January 27, 2003 @06:40PM (#5170017) Homepage
    This is just an idea, I've never tried it: how about taking simple programs and trying to implement the exact same program in each langauge. Oh sure, VB and COBOL are very different and the interfaces will no doubt be different, but looking beyond that, trying out the same exercise in each language could teach you a lot about them both as you see how they are similar and different. Using a common problem domain will allow you to focus on the differences in structure and syntax. I'm not suggesting trying tough projects here, just simple exercises: memory management, arrays, search trees etc.
  • huh? (Score:4, Insightful)

    by kevin lyda ( 4803 ) on Monday January 27, 2003 @06:42PM (#5170030) Homepage
    i took three programming courses one semester and learned fp, ml, prolog, lisp, clos, vax assembler and ada. in addition i had some projects in modula-2 and c. and you're worried about cobol and visual basic? come on, yer just messing.

    study, play with the langs and generally learn.
    • by s88 ( 255181 )
      Seriously, whats the big deal here?

      I presume this is not your first programming class. Provided you have taken Data Structures and basic principles, learning new syntax shouldn't be a serious problem for you.

      If you are serious about making this your career I suggest you bite the bullet and "Get Used To It!" In the "real world" you may get a week to come up to speed on a new language. Granted you won't be an expert but nor will you be after taking the classes.

      As an undergrad I took every programming language elective there was (including COBOL { there was no .net}). The only tips and tricks I can give are to want to learn the languages and you will have no problem. These classes are designed to teach you the languages. If you pay attention, do the required reading and course work and don't feel like you are learning them, then you need to look for a new university or switch majors.

      Not meant to be harsh,

      Scott

      • I'm not sure that that's so true. I used to share your view - that once you know one language, it's just a matter of learning different syntax to master the others. There is certainly, to my mind at least, a large gap between structured/OO languages and functional languages.
        • Heck, there's a large difference between OO and non-OO programming, even when taught in exactly the same language, like C++.

          While languages themselves are easy to get used to, types of programming need to be taught seperately. (Well, the types that need to be taught. GOTO-spagetti code programming maybe shouldn't be taught.;) ) I'd like to see seperate classes for OO, standard procedure, functional, and even event driven vs. polling and coverage of multi-threading. And I've probably forgotten a few.

          Once you've figured all those all concept, you can spend a few hours and grasp the basics of any language.

    • Did you go to the State University of NY at Buffalo? I went through the exact same set of languages in a semester there, way back in 1990.
      • yes, and i did it that year (i think - maybe 1991). i take it you over-scheduled too? :) the cs course guide said to limit yourself to two programming classes. i read that halfway through the semester as i was trying to survive three.

        i remember doing two all-nighters in a row and sleeping in bell hall as that guy got arrested for breaking into the vax cluster.
  • by Ashurbanipal ( 578639 ) on Monday January 27, 2003 @06:42PM (#5170031)
    Any place that considers COBOL a requirement, and Visual Basic worth spending course time on, is seriously out of touch with both the academic and business worlds.

    Most of the giant COBOL shops killed off their COBOL dependency during the Y2K fixup. COBOL programmers with 20 years of experience are a dime a dozen now. Most people I know with COBOL experience don't even bother putting it on their resume.

    Visual Basic is so trivially easy to master that it hardly requires a college course - a good manual and an on-line or CD tutorial should have you up to speed in two weeks or less.

    A school with a good program would be requiring C, and offering perl, C++, Java, python, and some more esoteric languages like Eiffel, Lisp, Icon, or such.

    Given no other choice, I'd skimp on the COBOL and practice the VB; you can use VB at home when you get a job as a Salesdroid, or use it with MSWindows in a mid-level management position.
    • You have any facts to back up your claim? COBOL is probably not needed in Fantasyland, but I can assure you COBOL is being used by many companies today. When I was coding COBOL over 10 years ago, we had used 4 digits for the year thus our suite of general ledger programs did not require any fixup during Y2K. Programs are still running in production.

      A good program is spending time on developing a firm foundation for software engineering, regardless of what language is used. You know, modularity, code reusability, supportability--stuff that's taught in Computer Programming 101/102. With a firm foundation, a student can pick up a new language with relative ease. Without a firm foundation, all is lost.
      • I went to www.jobsearch.com (which is a website I have NEVER visited before, AFAIK, I just figured the name would work and it did) and did some simple searches in their "help wanted" database.

        COBOL -- 242 hits
        JAVA -- 1183 hits
        " c program" -- 1740 hits

        So, COBOL's obviously the language to choose for a healthy career, right? It's DEAD, Jim. The only companies that use it will make you sit in a room with no windows and wear a tie. C'mon, you know it's true.

        Incidentally, I agree with almost everything else you said. But don't take it personally.
        • But if there are 10,000 people who respond to the Java position, and only 1,000 who respond to the COBOL one, the COBOL programmers will more than likely have better luck getting hired.
          • by Anonymous Coward
            "But if there are 10,000 people who respond to the Java position, and only 1,000 who respond to the COBOL one, the COBOL programmers will more than likely have better luck getting hired."

            Very true. Unfortunately for COBOL programmers, it hasn't been working out that way lately.

            All my C programmer friends are employed. Some of my VB-and-similar programmer friends are employed. Very few of my COBOL programmer friends are employed, and every one of them that is employed is working for a bank, and all those banks are trying very hard to eliminate their dependency on COBOL.

            COBOL has been steadily dying since the 1980s - it is entrenched in some businesses, but it isn't getting new footholds at the rate it is losing them.

            My company replaced half a million lines of COBOL with about 5000 lines of GNU Awk, which is OS independent (COBOL claims to be OS independent, but most real life COBOL shops are dependent on CICS, which has no fully functional ports to any cheap non-IBM platforms).

            The Gawk code runs more than ten times faster on a cheaper, less powerful machine. The programmers who coded it learned the language from scratch in two weeks and did the implementation in six months.

            No-brainer, people. COBOL is an interesting but obsolete language.
        • With a title like that, I wonder who is taking this subthread more personally.

          My point is COBOL is alive and kicking today and many businesses still use it. Your 242 hits reaffirms that COBOL is not deal. If it were, you'd see 0 hits. To reiterate, if one can apply the concepts learned in the beginning computer science courses, they should be able to learn something and apply that to other languages, with OO being an exception. Of course, I am not advocating that one can stick with just one language either--I did not say that at all. That's where the "Computer Languages" course comes in. This course was a prerequisite when I went to university and I would be surprised if this is not the case today. If employers cannot see that one's grades in school only gives an indication of how trainable that student is, they are missing the whole point.
          • My point is COBOL is alive and kicking today and many businesses still use it.
            I hear you, but my point is that it's not a good career choice, nor is it an appropriate course requirement in an institute of higher learning. Most universities do not require COBOL - I haven't checked, but I'll bet no truly respected College of Computer Science (Stanford, MIT, UD, etc) does. Why? Because it would be a disservice to the students to require COBOL, when they could be spending their time and $$$ learning C. Let COBOL be an elective, and persons like yourself can revel in it to your hearts' content.

            The orginal poster probably can't up and transfer in the middle of a semester, and thus will want to follow some of the more constructive suggestions that others have made (such as, implement the same programs in COBOL, VB, and C++ and then benchmark them. That'd be a good learning method). But somebody had to point out that it's ludicrous for a school to require COBOL.

            If you want to acquire a dead language, I recommend Classical Latin.
        • That little reaserch tells me that COBOL programmers enjoy job security.

          If my last COBOL program was not over 7 years ago I'd look for some COBOL gigs.
        • So, COBOL's obviously the language to choose for a healthy career, right? It's DEAD, Jim. The only companies that use it will make you sit in a room with no windows and wear a tie. C'mon, you know it's true.

          The COBOL job market is quite different from the Java job market. Mostly it's people who've been in the industry a long time and communicate through word-of-mouth, the trade press, and a network of recruiters.
      • by Anonymous Coward
        Lot's of very large finanical shops still run COBOL. If it ain't broke don't fix it. Those 20 year old legacy systems have been built up and patched over the years to do major workloads. You don't just throw out a Multi-Million Dollar mainframe that you have 20+ years invested in.

        Sure they hired Y2K COBOL programmers most of whom were retired and realized they could make a good buck for Y2K. Most of those were laid off after Y2K and the rest were laid off after the dot.bomb.

        The remaining few simply maintain it. Now outsourced India shops are re-writing large portions of the legacy code to interface it into new network architectures for single sign on, etc. It will use SOAP to interface with Java App Servers, etc. The cost is cheaper to keep what we have rather than port it to something else or even rewrite it from scratch. Hell there's few people about who can actually wrap their minds around the enormity of the systems.

        Knowing COBOL could come in handy someday. Sure it's a dying language but I'm sure you could learn something from it. Something along the lines of Latin being a dead language. There is still value in knowing Latin. Knowing COBOL is like knowing Latin not that COBOL is a basis for other language s like Latin; but because there is much in the way of legacy code still in operation out there. You may be tasked to interface with a COBOL system.
    • I'm going to have to disagree with you on your comments about VB.net.

      Since the .Net framework was released, VB is now every bit as powerful as the "real" languages. It supports threading, inheritance and is fully object oriented.

      Yes, it is simple to whip up a poorly written program using VB.net, but if given to someone who knows what they are doing, it is an extremely powerful & flexable language.

      Also, like it or not, there are quite a few jobs with .Net now. I would imagine there are a lot more jobs for VB than there are for the languages you listed as should be required (Eiffel, Lisp, Icon).
      • I didn't say Eiffel, Lisp or Icon should be required, I said a good school should offer courses in some of the more esoteric languages, and gave those as an example (though Eiffel's not really esoteric, just little-known).

        And what I was trying to say about VB was that it should be very easy to learn enough to pass an intro-level college course. I think the point of VB is to be easy to learn and use, neh?

        But thanks for the .Net comments, I have not investigated .Net yet. (I've been figuring I'll give it some time to mature first, and see if it has any staying power.)

        You are certainly right that there are more jobs available for VB jocks than Icon afficianados.
      • Since the .Net framework was released, VB is now every bit as powerful as the "real" languages.

        Yes, now that they've made it Java, it is indeed just as good as Java. It's a shame that they didn't look at taking a major step beyond Java, though.

        But still I'll skip it for now; anybody that takes seven versions just to get a language out of the "sucks majorly" zone isn't somebody I'm going to trust right away.

        I would imagine there are a lot more jobs for VB than there are for the languages you listed as should be required (Eiffel, Lisp, Icon).

        True, but unrelated to getting an education. Nobody buys CDs of people singing scales, but nonetheless, you gotta sing scales.
      • I would imagine there are a lot more jobs for VB than there are for the languages you listed as should be required (Eiffel, Lisp, Icon).
        Who cares? VB is really easy to learn, so if you need it for a job, sit down for 2 days and get used to it (don't learn too much though, or you will notice that it's so ugly that you don't want that job anyway).

        OTOH, Eiffel and Lisp (I don't know Icon, so I won't comment on it) will teach you new concepts, like DBC and a lot about robustnes resp. functional programming (Lisp could also be used to teach generic or OO programming, but this is rather unpopular in academia for some reason...). VB doesn't have anything other languages don't, and will only show you that a language designed for beginners some decades ago might not be the best choice for all problems.

    • by Sloppy ( 14984 ) on Tuesday January 28, 2003 @01:16AM (#5172351) Homepage Journal
      The Microsoft proprietary language requirement is pretty suspicious for a CS cirriculum, but there may be a valid reason for the COBOL requirement.

      I remember way-back-when, I had to use FORTRAN in a data structures class, precisely because it was so poorly suited. I suspect a lot of programmers are used to languages/libraries that automagically manage memory and garbage-collect, or else languages where the details of the heap and stack are managed for you, even if you have to keep track or your malloc()s and free()s. But if you use a language that doesn't have dynamic memory management and can't do recursion, then the programmer has to learn how to deal with all that under-the-hood stuff, using arrays or something. It's probably good for CS guys, at some point, to be exposed to the cost of all the things that modern tools do for them. Would you trust a CS grad who doesn't know how malloc/free work?

      So maybe that's what the COBOL requirement is for? Or maybe not. ;-)

    • Hmm, we still have millions of lines of COBOL running business systems. Yeah, not much new development is going that route, but there is a good deal of maintenance.

      But a one semester class isn't going to teach you enough to really write large COBOL programs. But what it will give you is a working knowledge of the language that will come in useful when you are tasked with porting the application from COBOL to Java and need to read the current code to understand the logic.

      Visual Basic is so trivially easy to master that it hardly requires a college course

      It's not quite clear to me you understand what "master" means.
  • And I assume they are, then don't sweat it man, both of those languages are usually taught in an extremely simple way in intro classes. Especially VB. I wound up having to take two semesters of VB (even after already taking advanced data structures in C++), and I lost points for not changing the background of my windows from grey to something like pink or orange. In the second semester class. I'm not kidding. And people wonder why I dropped out.

    The only way you will learn anything remotely useful is to work with the language you want to learn extensively on your own. You actually still think you go to college to learn things??
    • The only way you will learn anything remotely useful is to work with the language you want to learn extensively on your own. You actually still think you go to college to learn things??


      Yes you go to college to learn things. And contrary to a popular believe here on /. you learn very usefull things. In a CS curriculum you are not taught things like which statement compiles faster x++ or x += 1 or x = x + 1, your taught about algorithms and models and abstract ideas. And programming is only a subset of computer science, there are other things that are taught like computer arcitecture and such. Dont' waste your money (or your parents or whoever's) to go to a university just to become a coder, go get a certification and in 9 months you're done.

      But you do have a valid point, You won't learn anything unless you get down and dirty with a language.


      And I assume they are, then don't sweat it man, both of those languages are usually taught in an extremely simple way in intro classes. Especially VB. I wound up having to take two semesters of VB (even after already taking advanced data structures in C++), and I lost points for not changing the background of my windows from grey to something like pink or orange. In the second semester class. I'm not kidding. And people wonder why I dropped out.


      ALthough your professor may have been a prick for taking off points, it may be a valid thing to take points off of. If s/he had instructions to make the background pink and you put it orange i'd mark you off too. That's not following directions, no matter how trivial it is.
  • by karnat10 ( 607738 ) on Monday January 27, 2003 @06:47PM (#5170058)
    Programming is something you know or you don't. Sure your skills improve over time, but there are some basics to that activity that won't change with different languages.

    During a programmer's lifetime, you will have to learn a lot of languages, and frankly, if you know how to program, you can learn a new language in an afternoon, and get to be an expert after a month or so working with it.

    So this is my advice: Choose a project for each of the languages, realize it, and you will know both of them well.

    (I have to admit I never learnt COBOL so in a way I don't know what I'm speaking of. In another way, in my life I have learnt Basic, Pascal, C, C++, Java, Visual Basic, JavaScript and all that stuff, and I got easier every time.)
    • I agree. When I was in college I took every different computer language course offered. After the first couple, it was just a matter of remembering what was different between them.

      I usually find I need to "brush up" a little on a language I have not used in a while, but really even the most obscure languages tend to have a lot in common.
    • if you know how to program, you can learn a new language in an afternoon, and get to be an expert after a month or so working with it.
      Definitly not true. You can pick up a new syntax very quickly, but if you don't want to program C in Java (insert your languages of choice), it takes a lot longer. Each language has it's own idioms and cultural conventions about how to do things, different associated tools and working styles etc, and they can differ radically

      It's easy to get to the point where you can write working and useful code in a given language if you are a good programmer, but not to the point where your code is elegant.

      For a more general take on this, read Teach yourself Programming in Ten Years [norvig.com].

  • You're in luck. (Score:3, Interesting)

    by Jack Tanner ( 181565 ) <<ihok> <at> <hotmail.com>> on Monday January 27, 2003 @06:48PM (#5170064)
    COBOL and VB, arguably, come from similar philosophies -- they're both very verbose.

    COBOL is not tough. It's a relatively ancient, simple programming paradigm. Without various proprietory add-ons, it doesn't get into any of the web integration technologies or anything of the sort. You might actually pick up some useful insights into mainframes and the 'suit' mindset. Despite the FUD about COBOL, it's still going and growing VERY strong. COBOL-2002 is a new standard of the language, and code is still being written in it for many, many legacy applications. For example, here's a recent press release [infogoal.com] from a COBOL compiler manufacturer.
    Analyst firm Gartner estimates that applications managing about 85 percent of the world's business data are written in COBOL. Gartner further estimates that there are approximately 90,000 COBOL programmers in the U.S. and the annual growth of COBOL code over the next four years is 5 billion lines.

    VB, on the other hand, is completely proprietary, very up to date, but not nearly as useful server-side, and will have you hunting down advisories on MSDN.

    Summary: Focus on both. Neither is really hard. COBOL is easier. And if you really want to learn both, integrate a VB front-end with a COBOL legacy application.
    • Gartner further estimates that there are approximately 90,000 COBOL programmers in the U.S. and the annual growth of COBOL code over the next four years is 5 billion lines.

      That's 55,000 lines of new code per coder. Pretty aggressive estimate there.
      • Gartner further estimates that there are approximately 90,000 COBOL programmers in the U.S. and the annual growth of COBOL code over the next four years is 5 billion lines.

        That's 55,000 lines of new code per coder. Pretty aggressive estimate there.


        Well, this is COBOL we're talking about here.
  • by trajano ( 220061 ) on Monday January 27, 2003 @06:52PM (#5170089) Homepage Journal
    Most languages tend to have 3 basic building blocks:

    1) Assignment (a = 1)
    2) Conditional (if ... then)
    3) Loops (do while ...)

    Everything else around it is syntactic sugar and what really defines the language.

    The syntactic sugar basically manages the complexity of the program (it does not make things less complex).

    What I normally do is learn how to do those three things first and get a simple program that does something like

    a = 10
    while (a > 0) {
    if (a > 5) {
    print "greater than 5"
    }
    else {
    print "less than 5"
    }
    a = a - 1
    }

    Then I learn how to do procedures if it is a procedural language or how to do objects if it is OO. I tend to go to procedural first if it is supported since it is easier to learn and deal with.

    Next thing I learn to do (if needed) is the memory and pointer stuff. Nowadays I do not deal with it since most modern languages already handle it for you.

    By this point, I now have the basic framework of the language itself. However, it does not stop there.

    For any task that is given to you, you should always think that it should've been done before. So its quite helpful to get a searchable reference handy. This is basically the key thing.

    For example, I won't implement sort myself, I would use qsort() in C or the std::sort() in C++. Nor would I implement a stack or other simple data structures, I usually expect them to be there now, of course I still adjust to the language and I still remember how to do it anyway, it will just take some elbow grease.

    To paraphrase the Perl reference, there are 3 virtues each programmer should have... laziness (don't implement what you think should be standard), impatience (keep the reference guide with you when you are coding, its the fastest way to get at the information), hubris (well that just builds up as you get better and start getting A+'s)

    Good luck!
    • One other thing to add. Find out the languages specialties and design specifications.

      For instance, perl is a good string manipulation language, as was intended. Why? Because of regexp's and it is a script language. Quick to develop. Learn how to exploit those features.

      Ruby and Java are good OOP languages (from my experience), learn how they work, what features are there, why, and how to use them. I didn't say python since I don't know the syntax to say bupkis about it.

      Lisp for it's own reasons. It's good for expert systems (I believe).

      It overlaps your post, but it forces you to know what tools to use before you use them. So you wouldn't go writing an OS in perl, or a large OO system, since it isn't the most secure of languages in the sense of encapsulation.

      -s

    • by Piquan ( 49943 ) on Monday January 27, 2003 @07:22PM (#5170281)

      I disagree. The most popular languages today all more or less follow this (mostly because they're all Algol descendants), but not all languages do.

      Alan J. Perlis said, "A language that doesn't affect the way you think about programming is not worth knowing." I agree. Once you've learned C, then learning Pascal or Perl is nothing. But I've seen a lot of people who are sharp-on in Perl that couldn't wrap their heads around functional languages. Ditto for teaching people OO for the first time.

      If you're just learning languages by thinking they're all the same, then you're not learning languages. Don't write Perl code in Lisp; learn Lisp.

      • Very true, I should note next time that I meant this as the fastest way to learn a new [Algol based] programming language.

        However, this is usually the best way to get through most university classes when they change languages on you. The laziness factor hopefully would kick in, you won't want to write more than you should so learning to take advantage of the language facilities will know how to learn the language effectively.
        • I'll agree with you there.

          The last guy I interviewed for a programming job was a Perl coder. I asked him if he knew Lisp. He replied that he didn't. I then took out a half-page of Lisp code, and told him to add a particular feature. This wasn't a test to see if he got the answer right; I wanted to see how he handles stressful situations, and how well he can adapt to unusual circumstances. (He was hired, by the way, and is doing great.)

      • Perly things that may help Perl people in functional programming (or at least that help me) are:
        - Perl's map, grep and global match/substitution functions
        - Anonymous subroutines with lexical scoping (ie Scheme closures), and lexical scoping with my in general
        - eval
        - the distinction between lists and scalars
        - foreach

        I'm sure other people with less Shiraz inside them can think of other functional language constructs in Perl
    • Everything else around it is syntactic sugar and what really defines the language.

      I fully agree. Different languages have different capabilities, advantages, and disadvantages, but the basics (which is all you're going to get in an early CS class anyway) are pretty much universal(1). Once you have one language under your belt, picking up others is pretty easy. And you should have exposure to all the languages you can, so you can pick the right tool for the job!

      What else is involved in these classes, though? I certainly hope that they're not just "Learn COBOL" and "Learn VB.net". That'd be a serious waste of time. The courses I had in college (even the freshman year "learn to program" courses) typically had a goal and used the language as a means to achieve it. Like "Numerical Analysis" which happened to be done with FORTRAN at the time. But the language itself wasn't the focus of the class; the focus was on what you could use the language to do.

      Way back when, when the giant reptilian mainframes were starting to die and be picked apart by the annoying little mammalian micros, I had two courses the same term: Sperry-Univac 1100 assembly (Whee! 36 bit words! No stack! Whee!) and an intro to microprocessors course that taught 8080 assembly. Oh, and I was playing with 6502 assembly on my own at the same time. There was no cognitive dissonance. If anything, using various different-but-similar languages at once taught me more about programming than just learning a single language would have.

      After all, that's what it boils down to. Yes, companies advertise for a "Java programmer" or a "VB programmer" or a "COBOL programmer", but what they really want is a programmer. Damn the language, a real programmer can pick up a new one in a week. I got at least one job on this premise. They wanted a "C programmer", but I didn't know C. I did know Perl, though, and brought some Perl source from a large project to show them that yes, I could program. I also spent a weekend with K&R and banged out a simple "C" program. Hey, I can program and I can learn! I got the job.

      1. Procedural languages are pretty much the same. Declarative languages like Prolog or Erlang are a different ball of fish!
  • Concepts (Score:5, Insightful)

    by Apreche ( 239272 ) on Monday January 27, 2003 @06:57PM (#5170118) Homepage Journal
    I'm a CS major as well, and I know what it's like to learn many languages. I took a class called Programming Language Concepts (PLC). We learned LISP, PROLOG and Simulink(not really a language) in 10 weeks. The way I learned them so fast was to focus on the concept, not on the language itself. This has proved useful especially in the object oriented languages.

    Once you know the concepts behind a certain type of language. Say object oriented languages. You know things that are true about every object oriented language. There are classes, methods, public, private, exceptions, threads, locks, static stuff, polymorphism, inheritance, etc. Once you understand all of these things, every object oriented language should come easily to you. It took me awhile to learn C++, and a little less time to learn vb, then java. I learned C# in a matter of days, and I learned all of the basics of python in a few minutes this morning (no joke). Perl is next on my list.

    Get a book on object oriented/event driven programming. And get another book on procedural programming. Learn the concepts behind the languages, and not the languages themselves. The syntax and the API will be most of what you have to learn when picking up a new language. And those are things you can just reference repeatedly until you memorize them.
    • Note that not all OOPs are the same. Generic function OOP uses a little bit different structure than methods-on-objects OOPs. Writing one of these in a language designed for the other makes for icky code.
    • Re:Concepts (Score:1, Funny)

      by Anonymous Coward
      Perl is next on my list

      You may be in for a surprise :)
  • Hmmmm (Score:2, Insightful)

    by Anonymous Coward

    "Due to early registrations scooping up most of the good electives at my school..."

    Maybe instead of worrying about programming languages, you should use an elective to learn about effective time management. Knowledge of all the programming languages in the world will not keep you in a job if you can't get to work on time and think ahead about projects.

  • Learning two languages (natural or artificial) at the same time can be tricky. You have a few things going for you though, including that COBOL and VB.NET are pretty different languages, especially considering the specific features and library aspects which will be stressed in each of the classes. VB.NET will likely be app development, basic OOP, .NET library, GUI building; and COBOL likely text-interfaces, business forms, financial processing. Two relatively different problem domains.

    In general, if you don't take to a learning languages well (e.g., you're not a big lang nerd!), the best thing is to study a lot. Write a lot of example code. Don't skimp on reading. The more you learn, and the firmer it is learned the better you'll be able to seperate the knowledge between languages and be able to apply it better.
  • by Anonymous Coward
    This is sort of echoing many of the other comments here, but my personal experience:

    I had some compulsory courses in a variety of odd languages when I was at college, and originally thought it was a total waste of time. I mean, Modula-2, Poplog (Pop-11), 68k assember and a bunch of others so obsure I don't remember the name. They're ancient! I was itching to get onto the C/C++ stuff so I could start some "real" programming.

    It was only afterwards that I realised the extent of the knowledge and skills that had been subconciously implanted into me - among them the ability to pick up a new language and learn it quickly. When it came to learning C++ - it was a snap.

    My job requires use of C++. However, if I hadn't been in the mindset of exploring other languages, I would never have learned (on my own time) Python, Lua and x86 assember. They're more suited than C++ for many tasks, and have used them both in my work (for auxillary tasks) and my hobbies.

    There's never a danger of knowing too many languages.
  • Most CS majors have done this at one time or another. Last term I learned LISP, PROLOG, Matlab programming and assembler for a digital project. At the same time I was doing a course in C/C++ and teaching a Java Programming Seminar/Lab.

    The most important thing I can suggest is lots of review as often as possible. Someone above suggested implementing the programs from one language in the other languages you are learning. That's a pretty good suggestion, but I'd suggest a slight modification:

    Implement the basic techniques of each language in the other language(s). Things like making/assigning variables, looping, file access, etc.

    I don't know a lot about the Visual Basic .NET material, but if you know your basic C++, then you shouldn't really have any problems. If you know Java, then all the better, because some of the Java techniques/principles can be applied to the C# aspect of .NET.

    Good Luck!
  • COBOL.NET (Score:4, Funny)

    by Atomizer ( 25193 ) on Monday January 27, 2003 @08:16PM (#5170625)
    With .NET it doesn't matter what language you use, so in this case the obvious thing to do is to learn COBOL.NET.

    I saw some scary examples of it in the .NET seminars.
    • Why is this being modded as "funny"?

      Fujitsu is making a big push with NetCOBOL for .NET [adtools.com] and there's a lot worse things you could learn.

      Spinning knowledge of COBOL together with .NET probably ain't a bad idea if you want to position yourself as useful to big companies looking to migrate their legacy apps to .NET. Sure, it might not be interesting work (lots of tedious banking/insurance applications) but hell, if you're asking Slashdot to comment on what languages you should learn, let's face it, you aren't a born C++ programmer anyway.
  • I would say learn a real programming language before you learn Visual BASIC, as VB is a good language to ruin you for other languages. It is bloated and keeps you well away from the machine. Learn how to program properly before you touch VB.
    • I would say learn a real programming language before you learn Visual BASIC

      I also have some C++ knowledge, up to basic classes and memory management, so any of that that I could use in the current classes would be useful as well. Please read the whole story before you post.
  • by Phouk ( 118940 ) on Monday January 27, 2003 @08:42PM (#5170821)
    Make a comparison table between both languages, listing similarities and differences, and features which exist only in one or the other language. This way, when you think about both languages in terms of differences, you are less likely to mix them up, but at the same time, best leverage similarities in your learning.

    Trying to create a good structure for that table is probable alone going to give you some insights into the structure of programming languages!

    When you're done, be nice and put your table up somewhere on the web, might be helpful for anyone coming from COBOL wanting to learn VB or the other way round. One never knows.
    • This is excellent advice. The biggest problem you have to fear is getting the two languages confused.

      At the risk of being flamed for the simplicity of this idea, you might also consider keeping your two sets of class notes in two different colors. Then if you are trying to remember which language uses which kind of loop, you might be able to shut your eyes and try to visualize the page where you wrote it down...

  • by Bald Wookie ( 18771 ) on Monday January 27, 2003 @09:46PM (#5171162)
    Write all of your assignments in COBOL. Even the ones for your VB class. No matter what it is, implement it in COBOL first.

    Go party. Hard. Fear and Loathing in Las Vegas hard. Once your dorm room is full of bats start renaming variables and stripping out comments. If you can still remember what you wrote and why, you didn't party hard enough. Don't keep a backup copy of the original COBOL. That's cheating.

    The night before a VB project is due, dust off the corresponding COBOL. Now all you have to do is port the heavily obfuscated and undocumented COBOL to VB. You can even get extra points for realism by getting the prof to change the project spec sometime midstream.

    Once you've turned in your VB project, look back at the COBOL source. By now it should look like a bizzare cross between the tax code and naughty refrigerator poetry. The night before your COBOL project is due, start backporting it from the VB. Bonus points are awarded for targeting an ancient punchcard based architecture and then updating it to meet the project requirements.

  • Wrong approach (Score:4, Insightful)

    by cheezedawg ( 413482 ) on Monday January 27, 2003 @09:55PM (#5171234) Journal
    Good CS school programs have almost nothing to do with specific languages. You need to spend some time learning the discrete mathematics and the fundamentals of languages. When you learn that well, picking up the little quirks of a new language is easy, and you are a more versatile programmer.

    I would recommend some courses in compiler design. That will give you a good understanding of grammars, languages, and programming constructs.
  • by bluGill ( 862 ) on Monday January 27, 2003 @11:42PM (#5171876)

    Learning programing languages is trivial to a programer. Learning how to use any on to the best advantage can take years, but all you do in those years is memorise more and more library/template procedures and the gotchas of useing them. If you cannot learn both well enough to fool the teacher, then you should not be in CS.

    When I took CS the only language course that was required tought 12 langugaes in 10 weeks. It wasn't a big deal, we learned the syntax, and how to do some simple things (a binary tree or simlear) and moved on. Of course we were just told what the "standard library" was called, and told if we really used the language to look it up, because it will save a lot of time.

    Come to think of it, other than the one class that covered 12 languages, we wre simply told in class to submit assignments in such and such a language, and if we didn't know it (and the introduction class was tought in Scheme in large part because it was likely we didn't know it!) we were expected to pick it up on our own. In this was I knew 3 of the 12 languages tought in the languages class when I could finially get into it.

    In the course description of Cobol there was a warning "CS student may not take Cobol for credit". The same line was in the description of Fortran and C. A CS student should pick up anything that a class on a language can teach on their own. A CS student is expect to spend their time learning data structers, algorithms, and other things that make the different between someone who can bang out a little ugly code when needed, and someone who can take requirement and turn out a maintanable program in as few line as possible.

  • by jbolden ( 176878 ) on Tuesday January 28, 2003 @12:52AM (#5172240) Homepage
    Both Cobol and VB are a response to a business advanced by the major programming language firm of the time.

    In the early 1950s IBM pushed Fortran as a replacement for assembly arguing (succesfully) that it allowed for a large increase in programmer productivity without much loss of system performance. Fortran however was too "computer oriented" and many programmers with a strong business background found it difficult to express business ideas in terms of fortran succesfully. So an alternate language called COBOL was created which allowed for a better expression of business concpts at the cost of both performance and abstracting the details of how the machine was opperating.

    In the early 1990s Microsoft pushed visual development in C++ (visual C++) as a replacement for standard C arguing (succesfully) that it allowed for a large increase in programmer productivity without much loss of system performance. VisC++ however was too "computer oriented" and many programmers with a strong business background found it difficult to express business ideas in terms of fortran succesfully. So an alternate language called Visual Basic was created which allowed for a better expression of business concpts at the cost of both performance and abstracting the details of how the machine was opperating.

    So obviously the important thing to do since you understand C++ (and Fortran takes a day to learn) is to look at these languages as a reaction to the dominant languages of their day. Understanding what they were reacting too.
  • by rjh ( 40933 ) <rjh@sixdemonbag.org> on Tuesday January 28, 2003 @06:36AM (#5173227)
    Judging from your comment about how Visual Basic is the only useful elective left, that leads me to think this is your senior year. If you're an upperclassman and you're having trouble with COBOL and Visual Basic, find another major.

    COBOL and Visual Basic are both pretty simple imperative languages--the simplest form of language to understand. (Yes, VB has objects nowadays, but it's usually used in a mostly-imperative fashion.) Not only that, but you already know C++, which supports both imperative and object-oriented programming.

    It's not like you're suddenly dropped into an AI course and you have to learn LISP and PROLOG both; it's not like you've been thrown a copy of Ullman's Elements of ML Programming and told you have a test on OCaml in a week. These languages all make you think about problems in a totally new way, and that can take a significant investment of time. But learning imperative languages when you already understand imperative programming should not be difficult. You're not learning anything new; you're just learning a new vocabulary and grammar to express things you already know.

    If it'll give you any problems, you should give very serious thought to whether or not you want to make computer science your career. It sounds as if you possess neither inclination nor motivation, and you will probably be a much happier person if you can find a field for which you possess both inclination and motivation.
  • I'm not a CS person, although I have taken a little programming.

    I studied C++ the way I studied other languages (German, Italian, organic chemistry, art history): Make a conscious note to yourself at the start of your programming that "I'm now working on COBAL," and do your COBAL stuff. Then, take a half-hour break and do something completely different (dinner, drawing, skydiving). When you come back to your desk again, say, "Now, I'm working on Visual Basic," and do the next set of stuff.

    To quiz yourself, translate stuff from one to the other, find which works better, see if it gives you ideas for the original (don't do this until you're done with the assignment!

    This sounds really stupid and self-evident, but I found that it works.

  • There are a lot of manufacturing and transporation companies that use COBOL and RPG and I'm pretty certain the Army still has a lot of RPG in some places... you may not like the idea of a job maintaining or porting code; but it could be an easy six-figure salary like many mainframe and VMS jobs [look at Geekfinder; they ARE out there] can be. I know that the IRS has a hard time finding certain older and more obscure systems knowledge though that kind of contract work can be risky - their favorite phrase is "knowledge transfer" in the job description.
  • and realizing it was all of 1/2 hour, at lunch, [at a burger king in fact -- right off of the community college campus.]

    Generally I don't go for the "one upmanship" stuff of how fast I learned this or that, but in this case I make an exception because when I finished lunch I specifically remember thinking to myself, "OK, I've just skimmed through the book and I'm fairly certain I already know the concepts that will be presented during this semester." This was in the early 80's, I think my second semester in "college", and I had a pretty solid understanding of BASIC, a non-trivial amount of (z80) assembler, and a dabbling of "other languages" [APL, fortran, etc.]

    I had picked up the required book from the school's bookstore, went to lunch at the aforementioned BK, and started looking through the chapters. It didn't take long to realize that some things were simply renamed terms (table == array) and other things were "syntactic sugar" ("accept" vs. "input") At first, the amount of "preamble" seemed a bit daunting, but in practice that's when I found out how to effectively use a "mainframe" style line editor... :)

    One of the BEST things I think I've learned from COBOL is the underlying format of data in a "structure" -- don't underestimate the power of "redefines" or a level 88 variable! Investigate these to learn their "counterparts" in other languages...

    • One of the BEST things I think I've learned from COBOL is the underlying format of data in a "structure" -- don't underestimate the power of "redefines" or a level 88 variable! Investigate these to learn their "counterparts" in other languages...

      Most modern languages do not even have the same powerful features. These are like GOTO, very powerful if you know how to handle them, but easy to misuse if you do not grasp their implications.

      I do much programming in Perl, but the way you can layout data structures in COBOL is one of the things that I really miss.

  • this all depends on your own mind. COBOL isn't that hard of a language (at least it wasn't for me).... i learned it in my spare time from my father, actuall... and at the time, i was also self-teaching myself XML from a few books. i can't say too much to help you though, because most of my tips would only help in a non-institutionalized learning atmosphere. tests and grades ruin education:\
  • The best way to learn these is to go to the class once a week or less just to find out about assignments, and learn the entire thing from a book.

    That's what you are going to be doing when you graduate, after all...

    But more seriously...

    Don't worry about getting the two confused - it just doesn't happen; the brain doesn't work that way. The biggest trick is to learn a concept and immediately use it in a sample program.

    Keep these snippets of code for your real projects. You'll be using most of them.

    Don't forget to have at least an extra book available to get a second opinion.

    Finally, don't panic. It really isn't too bad.
  • I have started a CS degree through Unisa in South Africa and I have to learn 3 languages this year. for Intro to programing 1 I have Pascal. Intro to programing 2 is C++ and Intro to visual programing is Dephi. Unfortunatly the compilers/dev tools used in the books are all winblows based, meening I now have to duel boot between windows and linux. Apparently next year they wil be using C++ for Intro to programing 1 but that dosn't help me. I can see I am going to be very confused by the end of the year trying to ad these 3 new languages to the languages I already know(basic, perl, php). I guess there is no chance of me kicking my caffine addiction this year.:-)
  • I think learning two languages at the same time can actually be better than learning them separately. My university taught C in its Intro to Programming course for Freshmen and assembly language in its Computer Organization course for Sophomores. I transferred into CS as a Sophomore, so I had to take them concurrently. At first, I was worried about mixing them up, but then I found that I was actually getting a better appreciation for how programming languages worked. It was very eye opening to learn a construct in C, like loops or conditionals, and then learn how they are implemented in assembly the next week. I feel that I had an advantage by learning the "innards" of C at the same time I was learning the syntax.

    This benefit is dependent on the languages being learned concurrently, of course...

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