Re: Java or C++?

From:
James Kanze <james.kanze@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Sun, 20 Apr 2008 02:15:59 -0700 (PDT)
Message-ID:
<0fa0c9c7-1ee8-45e0-bf99-c312d0b184f0@s50g2000hsb.googlegroups.com>
On 19 avr, 23:40, Razii <whatever1...@hotmail.com> wrote:

On Sat, 19 Apr 2008 05:26:05 -0700 (PDT), s0s...@gmail.com wrote:

I've been programming Python for a couple of years now. Now I'm
looking to move on to either C++ or Java, but I'm not sure which.


There is nothing that you can do in C++ that you can't do
in Java (except write low-lever drivers perhaps).


There's actually a lot: programming by contract, for example, or
intelligent management of locks. Or distribute a program for
which you can give reasonable guarantees of reliability on any
platform on which it runs (i.e. no dynamic linking).

I work mainly on large servers. I can't use Java for
reliability reasons; my code must work, every time.

Everything that you can do in C++, you can do it much easier
in Java with standard libraries that support threading,


Threading is actually considerably easier to do right in C++
than in Java.

networking, GUI and much more.


GUI is easier in Java. I've had no problem networking in C++,
and all of the large servers I'm familiar with (e.g. Apache,
etc.) are written in either C or C++---never in Java. When I
wrote the server for dynamic allocation of IP addresses
(networking), we used C++ for the server itself (for reliability
reasons, mainly---we guaranteed up time), and Java for all of
the interface code around it (mostly beans under WebSphere).

Also, the java app with GUI and networking will run only every
OS that has a JVM. In C++ you have to hunt for libraries,
build them, and there is no guarantee that you will get a
portable product in the end.


And if the code is only supposed to run on one machine, or a
small set of machines? With care, it's possible to write C++
code which ports easily to most Unix machines, and for large
scale servers, that's all you're interested in anyway.

--
James Kanze (GABI Software) email:james.kanze@gmail.com
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