Java Enterprise And Standard Edition

[Saiful]

Hi All

I am newbie to Java. I download a Java Enterprise edition and build some
Java code but discover that the Enterprise edition holds no javac command
to compile. Discover this when I tried to compile a .java file and was unsuccessful.

I was wondering what is the difference between an Enterprise to a standard
edition such that when I try to compile and execute a .java file, I can't
do so in an enterprise edition. How then is Enterprise edition being used
in a java environment??? Does it need a java standard edition?

rgds,
Saiful

[Kim Fowler]

Hi
The java standard edition (J2SE) and the java enterprise edition
(J2EE) work together. Basically:

J2SE gives you the core system, the standard run time classes and
APIs/ packages, these are in one jar file - rt.jar It also include the
development tools javac/ jdb/ javah etc. There is also the JRE, this
is only the runtime system without any development tools - aimed at
installation on client machines.

J2EE is a collection of commonly used packages for enterprise
programming - EJB/ Servlet/ JSP etc. You could download all of these
separately and install them on your system but J2EE eases this by
making them all available in one jar file - j2ee.jar In addition the
J2EE set of technology includes a testing environment application that
can play the role of CORBA ORB, EJB Application Server, Web Server,
Servlet/ JSP Engine etc. This is called j2ee (lower case) and can be
run from the command line

Just to help with the confusion, the term J2EE means one of three
things depending on where it is used: a) the catch all description of
the technology set as in "I am developing a J2EE application" b) the
technology set you download from Sun and c) the application supplied
within the technology for testing (j2ee - lowercase)

For your development you should install J2SE and J2EE on the machine

--
Kim

On 28 Sep 2000 02:20:38 -0700, "Saiful" <md-saifulamri_omar@hp.com>
did scribble:

>
>Hi All
>
>I am newbie to Java. I download a Java Enterprise edition and build some
>Java code but discover that the Enterprise edition holds no javac command
>to compile. Discover this when I tried to compile a .java file and was unsuccessful.
>
>I was wondering what is the difference between an Enterprise to a standard
>edition such that when I try to compile and execute a .java file, I can't
>do so in an enterprise edition. How then is Enterprise edition being used
>in a java environment??? Does it need a java standard edition?
>
>rgds,
>Saiful


--
Kim

Kim Fowler

[Vikram Rajan]

hi Saiful,

The Java Enterprise edition is nothing but a set of APIs which can be used
in the distributed computing environment. The Standard Edition or the SDK
contains core Java API along with the standard tools like the java compiler.
So you will first require the SDK on your system. Use this as base to build
applications using the Enterprise edition.

Vikram