In which language JVM is written?

Am new to Java. But the first thing i want to know is in which language JVM(Java Virtual Machine) and JRE is written. There are people sayins it is written using C, some say using C++, but i still have not recieved an aunthetic information.

arun_ramachandran wrote:
So how many compilers are presently avilable?
Many. The two major ones are probably the Sun javac compiler, as shipped with the SDK and the the Eclipse compiler ecj.
which is the standard compiler (i guess it is SDK by SUN)?I don't think that any one compiler is defined as "standard", strictly speaking.
The one in the JDK is probably the most common one, 'though.
which language SUN uses to write the core of the compiler?Java.
what all forms part of JVM?That's too broad a question, Google.
And if it is written both in C and Java, how are they interacting with each other?As the compiler is pure Java, this question is irrelevant.
You're still confused about the entire JVM vs. compiler issue. They are two entirely different beasts.
The compiler takes Java source files (containing Java source code) and produces class files (containing byte code).
The JVM takes class files and executes them.

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In which language does the jvm program is written?

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>
Anton Wenzelhuemer wrote:
> oh, this a good example of how the possibility to edit postings once they are already sent renders the online conversation sometimes meaningless.
>
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If you're looking to develop a driver for the instrument, one already exists and can be download here or you can get it off of the driver disk that comes with LabVIEW. If you're asking for the best language in which to write an application program that uses the driver, the obviously the answer is going to be LabVIEW. Note that you might get a different answer if you post the question to a Visual Basic or C++ forum but those answers would be wrong.
Message Edited by Support on 11-26-2008 01:33 PM
Message Edited by Support on 02-17-2009 09:30 AM

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er environment for a growing department. Thanks.

timsorenson wrote in message
news:[email protected]..
> Currently we have a LabVIEW application that a 3rd party vendor
> created specifically for our needs. This application handles all data
> logging and instrument control of a large printing press. There is a
> secondary program that was developed in-house that acts as the user
> interface to this LabVIEW program and communicated through DDE. My
> question centers around the fact the we are currently in the process
> of upgrading the functions of these two programs and would very much
> like to maintain only one development language. Should we do
> everything in LabVIEW or VB/C++ with Measeurement Studio? Can someone
> please point out some quick easy to understand benef
its of using
> either language and which they feel would be a stronger environment
> for a growing department. Thanks.
Well, you asked in a Labview group, so my answer is Labview.
Of course, it depends on what software you need written.
Here are my reasons.
1) If you require instrument control (DAQ etc), etc. labview is very very
good!
2) Development time in labview is very short, you can't beat it in the
speed in which you can go from initial architecture to final application.
3) It sounds like the majority of the code you mention is already in
labview.
It is easier to write "user interface" in labview than to write "instrument
control"
in CB/C++.
4) You can always hire labview programmers on contract. The NI Alliance is
good for this. (but of course, you can hire anyone you want for c++ too).
Cheers,
bob stockwell
[email protected]
Sunrise Software, LLC
7421 Mt. Sherman Rd.
Longmont, CO 80503

Identify which language version of java is installed

Hi
jre for windows is available in two versions "us engilsh" and "all other languages". How can we know which version of jdk is installed in a machine
regards
sibi

I tried running the program and the result was
C:\temp>d:\jvm\jdk1.2.2\bin\java Test
java.specification.name !Java Platform API Specification!
awt.toolkit !sun.awt.windows.WToolkit!
java.version !1.2.2!
java.awt.graphicsenv !sun.awt.Win32GraphicsEnvironment!
user.timezone !Asia/Calcutta!
java.specification.version !1.2!
java.vm.vendor !Sun Microsystems Inc.!
user.home !C:\Documents and Settings\sibi!
java.vm.specification.version !1.0!
os.arch !x86!
java.awt.fonts !!
java.vendor.url !http://java.sun.com/!
user.region !US!
file.encoding.pkg !sun.io!
java.home !d:\jvm\jdk1.2.2\jre!
java.class.path !.!
line.separator !
java.ext.dirs !d:\jvm\jdk1.2.2\jre\lib\ext!
java.io.tmpdir !d:\temp\!
os.name !Windows NT!
java.vendor !Sun Microsystems Inc.!
java.awt.printerjob !sun.awt.windows.WPrinterJob!
java.library.path !d:\jvm\jdk1.2.2\bin;.;C:\WINNT\System32;C:\WINNT;C:\WINNT\system32;!
java.vm.specification.vendor !Sun Microsystems Inc.!
sun.io.unicode.encoding !UnicodeLittle!
file.encoding !Cp1252!
java.specification.vendor !Sun Microsystems Inc.!
user.language !en!
user.name !sibi!
java.vendor.url.bug !http://java.sun.com/cgi-bin/bugreport.cgi!
java.vm.name !Classic VM!
java.class.version !46.0!
java.vm.specification.name !Java Virtual Machine Specification!
sun.boot.library.path !d:\jvm\jdk1.2.2\jre\bin!
os.version !5.0!
java.vm.version !1.2.2!
java.vm.info !build JDK-1.2.2_006, native threads, symcjit!
java.compiler !symcjit!
path.separator !;!
file.separator !\!
user.dir !C:\temp!
sun.boot.class.path !d:\jvm\jdk1.2.2\jre\lib\rt.jar;d:\jvm\jdk1.2.2\jre\lib\i18n.jar;d:\jvm\jdk1
.2.2\jre\classes!
C:\temp>
how can i identify the language version from this?
regards
sibi

In which language JVM is written?

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