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From: bob@nospam
Subject: Re: Java momentum slowing ?
Date: 1999/05/11
Message-ID: <7h8lmu$2p8n@drn.newsguy.com>#1/1
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References: <372b0ec7.28153993@news2.ibm.net> <3728E60E.F789FD8@uq.net.au>
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Organization: Newsguy News Service [http://www.newsguy.com]
Newsgroups: comp.lang.ada
Date: 1999-05-11T00:00:00+00:00
List-Id: <comp.lang.ada>

In article <3737AB6D.FACB718C@Botton.com>, David says...

>
>I was just thinking, is it possible to write a Java app that makes
>system calls, etc with out writing code in C/C++, Ada or another
>NON-scripting language?
>
 
I don't know why you keep calling Java a scripting language. but
if it makes you feel somehow better that is fine, but you are
wrong.

Just becuase the output of a java compiler happened to be something
called bytecode instead of something called assembler or even machine
instructions does not make Java a scripting langauage.

But to answer your question, yes of course. you use JNI (Java native
interface) to call something not written in Java. It is trivial to do
really. most people do that to call C or C++ code from Java. of course
your application become non-portable as much as it were if all the code
was written in only Java.

>
>(OK you could use TowerJ to compile to native code and finagle
>something, but that would not be "standard" java :P

Again, you are really confused. just becuase you can compile Java
to native machine instructions instead of to byte code instructions,
does not somehow changes it to become 'non-standard'.

just-in-time compilers do that all the time on the fly, the hot spot 
optimizer does that also, inside the JVM. Does that somehow make 
the source code non-standard?

They only time you java code is non-standard if you use M$ Java tools. As
long as you stay away from M$ things, you are safe. 

Bob