Re: J2SE vs J2EE

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Sat, 09 Sep 2006 20:15:09 -0400

Message-ID:

<dOIMg.37526$_q4.19897@dukeread09>

rutski89 wrote:

I'm extremely confused about the differences between J2SE and
J2EE. I definitely get the idea that J2EE is meant of developing
multitier robust applications, web services, and other such fancy
enterprise level software. What I don't understand is why this
can't be done in plain old J2SE?

I hear things like "because J2EE includes special packages such
as java.sql and javax.sql", yet I see that I have those classes
available in J2SE as well.

In sort my question is:
What can J2EE do that J2SE can't? ***and why***?

J2SE defines:
   Java language
   Java virtual machine
   Java libraries

J2EE defines:
   servlet
   JSP
   EJB
   JCA
(+ some minor specs)

J2EE requires J2SE.

You will always need J2SE.

You will need J2EE if you want to use any of the
features in J2EE.

Most server Java code actually uses J2EE (RMI and
socket servers are not that common).

Arne

PS: After the latest confusing name change I think it is JSE and JEE.