Re: .Net Impressions, Right Or Wrong

  • From: "qubit" <lauraeaves@xxxxxxxxx>
  • To: <programmingblind@xxxxxxxxxxxxx>
  • Date: Thu, 24 Jun 2010 06:17:47 -0500

that's the idea...
btw: what prompted the question? are you needing to use a c library somewhere?
--le

  ----- Original Message ----- 
  From: Homme, James 
  To: programmingblind@xxxxxxxxxxxxx 
  Sent: Thursday, June 24, 2010 5:58 AM
  Subject: RE: .Net Impressions, Right Or Wrong


  OK Laura,\

  Let me try to translate. I sit down and write a file in C, for example. I 
compile that file. The C compiler turns it into something that the machine can 
read. In that file is a bunch of functions that I want to just use in other 
programs I write. The next day, I come back and whip out a program in Visual 
Basic. Visual Basic has some way of telling the compiler in my source code that 
I want to use the file I wrote yesterday with my functions in it. I do what I 
want with my C functions in my Visual Basic file. And the computer and I are 
both happy. How's that?

   

  Jim

   

  Jim Homme,

  Usability Services,

  Phone: 412-544-1810. Skype: jim.homme

  Internal recipients,  Read my accessibility blog. Discuss accessibility here. 
Accessibility Wiki: Breaking news and accessibility advice

   

  From: programmingblind-bounce@xxxxxxxxxxxxx 
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of qubit
  Sent: Thursday, June 24, 2010 6:10 AM
  To: programmingblind@xxxxxxxxxxxxx
  Subject: Re: .Net Impressions, Right Or Wrong

   

  hi jim -- no, in one language you declare a function f so you are able to 
call it, but you declare it in language A, although it is defined and 
implemented in another file in language B.

  note the difference between declare and define.  define means you supply the 
body of the function, with executable statements and such.

  This whole explanation presupposes a language like C or those in that family 
of languages that have strongly typed prototypes of functions or methods.

  I'm sorry, the whole idea is that a method or  function is called in language 
A, but defined in language B.

  --le

   

   

    ----- Original Message ----- 

    From: Jim 

    To: programmingblind@xxxxxxxxxxxxx 

    Sent: Wednesday, June 23, 2010 9:56 PM

    Subject: RE: .Net Impressions, Right Or Wrong

     

    Hi Laura,

    So do you have to put the stuff from one language in one source file and 
the stuff from the other language in another one, or can you (I'm not sure why 
you would) put it all in one source file and say some incantation over it?

     

    Jim

     

    Jim Homme

    Skype: jim.homme

    "Every day's a gift."

     

    From: programmingblind-bounce@xxxxxxxxxxxxx 
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of qubit
    Sent: Wednesday, June 23, 2010 7:16 PM
    To: programmingblind@xxxxxxxxxxxxx
    Subject: Re: .Net Impressions, Right Or Wrong

     

    It depends on the languages, Jim.

    Of course, in the end they all have to communicate at some level, but in 
the case of java and C, java compiles down to its own little interpreted 
virtual machine, while C compiles down to a .exe that runs on the native 
hardware -- so you have to specify "native" in the declarations in java for the 
functions that are actually implemented in C, and the whole thing somehow 
agrees not to crash your system *smile*

    --le

     

      ----- Original Message ----- 

      From: Jim 

      To: programmingblind@xxxxxxxxxxxxx 

      Sent: Wednesday, June 23, 2010 5:44 PM

      Subject: RE: .Net Impressions, Right Or Wrong

       

      Hi,

      I may not be saying this correctly, but here goes. I was reading a book 
today about this, and it seemed that they were saying that you write in the 
language of your choosing. Then, something takes it and translates it into 
something called a Common Intermediate language, and from there, some of the 
stuff gets put into a common runtime language and that's what makes it work for 
many languages. This is just my attempt to understand how this works. But the 
book I was reading said that most of the time you program in .Net, you're 
really learning how to use the .net framework classes. What little time you 
spend in a given language, you spend hooking things up so that the various .net 
stuff you use works on the data from your program. 

       

      How's that for babble?

       

      Jim

       

       

       

      Jim Homme

      Skype: jim.homme

      "Every day's a gift."

       

      From: programmingblind-bounce@xxxxxxxxxxxxx 
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of RicksPlace
      Sent: Wednesday, June 23, 2010 5:50 PM
      To: programmingblind@xxxxxxxxxxxxx
      Subject: Re: .Net Impressions, Right Or Wrong

       

      I have not done that much. Once i had either a couple of files or 
Webpages written in vb and C#. The files just had the .vb and .cs extensions 
and when the project compiled it translated them. Other than that I'm not sure 
how it would work. I work in the Express modules which are for one language. I 
guess Visual Studio would have facillities to handle that since it has multiple 
languages but I'm not sure how you would implement it.

      I know that whichever language you use it is converted into IML which is 
the same for all the .net languages. Likely the compiler reads the file 
extension and converts the source code to IML based on a translator for that 
language and then the IML is merged to create the finished translated code.

      Rick USA

        ----- Original Message ----- 

        From: Jim 

        To: programmingblind@xxxxxxxxxxxxx 

        Sent: Wednesday, June 23, 2010 5:35 PM

        Subject: RE: .Net Impressions, Right Or Wrong

         

        Hi,

        I'm one of these people who still thinks computers are part magic. How 
does it work when you have two languages in one program. Do you have two files?

         

        Thanks.

         

        Jim

         

        Jim Homme

        Skype: jim.homme

        "Every day's a gift."

         

        From: programmingblind-bounce@xxxxxxxxxxxxx 
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of qubit
        Sent: Wednesday, June 23, 2010 4:22 PM
        To: programmingblind@xxxxxxxxxxxxx
        Subject: Re: .Net Impressions, Right Or Wrong

         

        lol -- imagine COBOL.NET -- sounds like an oxy moron...

        I think you are right, although the languages should be able to support 
OO style in order to integrate .NET.

        and if you have multiple languages in one program, you have to be sure 
you interface correctly to take into account calling conventions -- passing by 
value vs by reference, handling of arrays, etc.

        --le

         

          ----- Original Message ----- 

          From: Homme, James 

          To: programmingblind@xxxxxxxxxxxxx 

          Sent: Wednesday, June 23, 2010 1:09 PM

          Subject: .Net Impressions, Right Or Wrong

           

          Hi,

          Am I getting the right impression about this? From what I'm reading, 
you can pick many different languages. They all use the .Net Framework Classes. 
Therefore, it only matters which language you use if you are working in an 
environment where that language is used. For example, if you work somewhere and 
they use C# with .net, then you'd want to learn C#. If you worked or had fun 
somewhere in which they use VB.Net, then you'd want to learn that language. The 
same would apply if you wanted to use Python in the .Net environment. You could 
use Python, but you'd be able to access the classes in the .Net framework, but 
with Python. And the same would go for Cobol, assuming there is some sort of 
Cobol something that uses .Net. Is that anywhere in the ball park?

           

          Thanks.

           

          Jim

           

           

           

          Jim Homme,

          Usability Services,

          Phone: 412-544-1810. Skype: jim.homme

          Internal recipients,  Read my accessibility blog. Discuss 
accessibility here. Accessibility Wiki: Breaking news and accessibility advice

           

           


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