Want to learn j2ee

Hi Guys, I have learnt core java and now I want to learn further. I keep hearing terms like struts, servlets, JSPs, Hibernate, XML, java beans.
Can you tell me what should I pursue next & what should be the sequence. Becoz i picked up a book on struts last week & didnt understand anything.
Thanks!

Why not take the tutorial?

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Please, help me learn J2EE...point me out to better tutorials or something!

Hi,
Guys, I really need help in trying to learn what J2EE is.
I've got prior knowledge and experience on Java (I thought), but ever since I came across the terms J2EE, EJB, JNI, JSP, JDBC and all that crap, I now don't know what I actually learnt!
Please bear with me I beg of you! :)
1.0: What I've learnt.
===============================
So far, I've learnt (I think) the core/basics of the Java language, covering uhm...the basics up to GUIs, Arrays, IOStreams...yeah I think that's it.
I code using notepad and compile them using the SDK...which up to now I still don't know if it is an SE or EE edition. It's j2sdk1.4.0 the last time I checked. I didn't use any IDE.
I've done (school) projects like a Library System (involves loaning of books and charges etc etc), a Chalet Organizer (Loaning out chalets/rooms and charges etc etc) and an Appointment Organizer.
So what was that which I learnt? Am I right to say that that is only core Java and nothing else and is next to worthless in the working world?
2.0: Why I want to learn J2EE.
===============================
Okay so why do I want to learn specifically J2EE? Well, most employment opportunities here require J2EE and EJB (and maybe some other alien terms) as prerequisites to being a "Java Programmer".
I really need the job as soon as possible (for family's sake) and the job market here is already saturated with webmasters..
3.0: What I have tried.
===============================
Believe me, I tried for like 2 months already to try learn this thing on my own.
I have followed almost exactly to the J2EE "Beginner's Tutorial" found on http://java.sun.com/j2ee/tutorial/ but no matter how far I read, I'm still just as clueless as I was when I was in my mother's womb about what J2EE is all about, even though I did the examples. I stopped somewhere in the middle of "Getting Started" because I realized I wasn't learning anything at all.
4.0: Help meeeeeee...
===============================
4.1:
Can anyone please help me set my head straight and either point me to a REAL beginner's tutorial on J2EE and what the heck it is, or help explain to me slowly what J2EE really is and how to learn it?
4.2:
What's the difference between J2EE and J2SE?!? I initially thought that J2SE was simply just a smaller download which didn't include some of the heavier stuff that the EE carried, but boy was I wrong when that same tutorial asked me to install BOTH of them!
4.3:
Is it right for me to think that EJB are just files which are precoded to facilitate programming? e.g.:(I could've written up my own Date class instead of using the standard Date class that everybody uses.)
4.4:
What the hell is Jakarta Ant? Is it a builder and not a compiler, and may allow me to run built programs just by double-clicking on an e.g. executable? Like C++? So that I don't have to go to command prompt and type "java myApp.class"? (OT, but I think it's ridiculous that Apache has this and not Sun!!)
4.5:
Is there a simpler, much much much simpler example of a J2EE tutorial besides the overly vague tutorial "The Duke's Bank Application"? I need more examples of smaller scale maaaan... Better yet, is there a tutorial around that covers the very very very basics of Java all the way up to J2EE, step by step and with ample explanations?
=========================
Thanks all, I would really really appreciate any heads up you can provide me with.
Sincerely, Kai.

Lee and tsith - same fella -
Run Tomcat as a standalone critter - the install of the current ver (4.1.12?) on a Windows machine sets it up nicely, and you don't have to worry about web connectors and stuff. Just create a few JSPs and dump them somewhere under the ROOT directory of your webapps directory and you should be able to hit them via a URL like http://localhost:8080/test.jsp (assuming you have it running on port 8080). Once you get your fill of the JSP thing, make a serrvlet and look into creating WAR files - then copy your WAR file into webapps subdirectory of your Tomcat installation and play with that. When you've had enough Servlet fun, then look into JBoss and making EAR files and you'll have all sorts of fun with JNDI and JDBC and all those other acronyms.
Ant is just a build tool, not a compiler. Compiling simple java classes is no big deal, 'cause you just type javac MyClass.java or some such. But when you get into complicated build processes (like, compile these classes, making sure to include the J2EE jar and all the other jars I need, and create a WAR file, and deploy it to Tomcat) then Ant really helps.
If you want help documenting your classes, the javadoc tool is for you.
Lee

Start to learn J2EE

Hi, I want to learn J2EE. Would someone advise me where should I start? I had been doing Java, Struts, Servlet and JSP for a few years. Thanks.

stonegrass wrote:
Hi, I want to learn J2EE. Would someone advise me where should I start? http://java.sun.com/j2ee/1.4/docs/tutorial/doc/
I had been doing Java, Struts, Servlet and JSP for a few years. Thanks.Sounds like you've already started doing J2EE then :)

How learning J2EE?

i've been learning java for one year.now i want to learn J2EE,but as a student,i have no
chance to "do Projec"t,it is impossible to "do J2EE" for only one.
so,how could I learn J2EE ?
3X!

Go download, install and use tomcat, http://jakarta.apache.org/tomcat/index.html . Go through its samples, write some jsp, build some servlets, write and understand taglibs and learn what a war file is. Doing this will get you started and you can do it all with tomcat.

Help in how learning J2EE.

i've been learning java for one year.now i want to learn J2EE,but as a student,i have no
chance to "do Projec"t,it is impossible to "do J2EE" for only one.
so,how could I learn J2EE ?
Thanks!

Start with the J2EE tutorial of course: http://java.sun.com/j2ee/tutorial/1_3-fcs/index.html

What's the flow of learning J2EE at present?

I know that many techniques are emerging nowadays. I studied J2SE already. Now I want to learn J2EE development. Who can tell me what's the structure and the flow to study J2EE?

start with servlets, JSPs, JSTL, and JDBC. You can go a long way with those.
when that feels comfortable, learn Spring.
No need for EJBs.
%

Hi i want tp start learning j2ee can anyone suggest any book or site for th

hi ,
i am MCA final year student i wana start learning j2ee can anyone suggest any site or book for that.
i know JSP n wana learn the remaining technologies in j2ee.
what all does come under j2ee.plzz help.

Hi Vikas,
This sun site contains all the information u need to get started in becoming the best J2EE programmer.
just browse under technologies...> J2EE (Enterprise Edition) there u'll see a lot of tutorials covering the J2EE platform..such as Web Services, portals...jsp, servlets, xml, xsl, JAPX, javabeans..e.t.c too many to mention.
Also there are other sites that can put u on the run try IBM..it has good resources for J2EE programmers www.ibm.com/developerworks or http://www-106.ibm.com/developerworks/ .
or simply open up google and type "Learning J2EE" or "Understanding J2EE" and what u'll get will stun you.
cheers.

Want to learn more

hi all!
I am a B.Tech 2nd year student. I know the basics of JavaSE.....upto
multi threading. But now as gain more I want to learn more java applications.
At present i am going through course of Data Structure and Algorithms.
now i want to learn jsp, xml, and basics of some of java applications.
So, i want to know how i can start....what i should do.....i'm very confused.....plzz help me...........

There are some things you can do:
1. stick to the client side and
- try programming a simple app that makes life easier for you in some way
- extend it to store some data to a JDBC database (try mysql for the first run)
- IF THAT RUNS, try some more sopohisticated persistence frameworks like hibernate.
- try Eclipse RCP, another client-side programming model apart from swing.
2. try server side / J2EE, BUT
- restrict to do plain servlets the first time, no struts, no JSP, no DataSources, no files, JAAS, JMS / clustering / spring. Got it?
- ONLY LEARN ONE TECHNOLOGY AFTER ANOTHER. j2EE is painful until you know what you do.
- dont use jboss, dont use websphere. For the first some projects, use plain-old Tomcat.
- after the first some running server apps, read a J2EE patterns book.
Path 1 is the easy, painless one. path 2 is the big world, hence cumbersome, painfull and wealthy, and you will learn Path 1 "on the run", but its hard work.

Want to Learn about J2ME

I am begineer in J2ME
I have a good knowledge of J2SE and some of J2EE.
so I want to learn about J2ME

device specific apis are available for several phones that do not support the WMA. http://www.wmlscript.it has j2me documents online. The site itself is in Italian, but there are documents in English also.

I want to lean j2ee deployment descriptor, help

I want to learn about deployment descriptor -- the .xml concept on j2ee, where I can seek help?

I learnt it from the servlet specifications.
You can download the servlet specifications from http://java.sun.com/products/servlet/download.html#specs
Especially chapter 13, if you decide to download servlet specifications 2.2

How easy/difficult is it to learn J2EE yourself and importance for intervws

Hi,
I m in the process of learning Java [ I ve learnt quite a bit over the last few months and also took a 5 day class which definitely helped.] and have this opportunity to take/or not take, this class in J2EE...
However, mainly due to $$ reasons... I am debating if I can just learn J2EE by myself instead of going to a class [ online sun tutorials, and other sources ] ....and how important it is to know this for inteviewing or could I just get by with:
" knowing Java well and stating I have 'familiarity with J2EE' and want to do more work on J2EE."
P.S. I am also preparing for SCJP.
Any thoughts welcome.

I guess the other way for a "beginner" in JAVA I really don�t see the need for talking EJB, Transaction... With few years of exp in J2EE, my strong feeling is only if you are really "STRONG" with the basics. Thinking about the HIFI stuff will be useful.
Just imagine, if a beginner can do an EJB. How much can we trust on the stability of the system that is developed?
It took nearly 2 years for me to appreciate the need and the usefulness of what J2EE or Sun with regard to J2EE has offered the developers. I have hardly attended any course on Java/J2EE. But I had to learn this stuff for pursuing a job and still living with the help of other developers around me over here.
I have taken the full or maybe most of the potential that was given by the search engines that helped me in doing this good stuff. I also recommend that firstly become an expert on the basics and mastering the rest is simple.

Want to learn iPhone Programming on 10.5 PPC, can i do this?

I want to self teach my self to program iPhone applications, i have no programming experience so inwill be starting from scratch. I have got the book 'Objective-C For Absolute Beginners' but before I begin I wanted to check I can learn using my system. I have a iMac G4 PPC running Mac OS X 10.5 Leopard which means I cannot run the latest version of Xcode. Is the latest version of Xcode that can run on 10.5.8 and on a PPC machine okay for me to practice and learn how to use Xcode and program for the iPhone? Because I don't have the money but when I can afford it I will upgrade to an intel computer maybe in a years time. But will it do for now?

AndiWhitts wrote:
Yes that's what I'm after, so writing program's for my mac is similar to iPhone app development only with a different UI ect.? and they definitely both use Objective-C? And the current Xcode I got with my leopard install will have everything I need won't it.
There are definitely some similarities. The lower-level libraries are very similar. At the application level, and the UI architecture level, they are significantly different.
I just wanted to make a start before I get an intel mac but I didn't want to learn it all then have to start from scratch when I get an intel mac because it is completely different.
You wouldn't start from "scatch" because it wouldn't be "completely" different. You would be starting near the beginning because it is 70% different.
If you want to start with the machine you have, focus on writing Mac apps. In a year, maybe you might have something that you could port to Xcode4 and release in the App Store.
Any machine made since 2007 will run Lion.

For all the newbies who wants to learn Java

I was a newbie like 4 months ago. i have some skills of OOP in C++ like 2 years back but since then i did'nt took any of programming language courses. I have experience in MSaccess and MYsql. i did my internship Last summer with Tennessee Education Lottery as a Database Analyst. At that time i realized what a Corporate Enviorment looks like. Trust me it was a formal interview and i passed it and they placed me in the IT department to write some scripts for the GUI terminal and at the same time create a Company Security Database. i did completed my project but i had to Learn Mysql. and then i realized Java was getting very popular. alot of people told me in the forums to go Java tutorial but i will not agree to start from the sun tutorial. you can do it only if you have a good or may be medium experience of OOP. it was really tough for me and then this magic guy came on the forum and told me to go on this website if you want to learn Java.
http://chortle.ccsu.edu/java5/cs151java.html
This site is a brilliant site specially the exercise problems and the quizes really attracted me to Java alot and now i came to realize how easy it is to program in Java rather than C++. Java forums have helped me alot in solving those exercise problems (not with the code but with a good explanation) which was very helpful for me. out of my 210 post i guess i have helped 30 people out and the rest of the questions are regarding those exercises. i came to know encapsulation, inheritance and all that stuff. though i am still not very perfect like i am still having trouble with ComparTo thing but it takes more practice. the more you practice the more you learn. so all the newbies if you really want to learn java even if you dont have any experience in OOp this is the site where you need to start. Hope this will definitely help you alot. thanks to all the Senior members navycoder, captain, paulcw, duffy, turingpest and others also who have helped me in the past. without you i would have not achieved the goal of learning java. now my next step is going to be learn GUI programming Swing. looks fun to me. but at the same time i have my final project for this semester to make on ONline Testing program which will have a database, php scripting and html and xml.
I will post if i have any problems

I was a newbie like 4 months ago. i have some skills
of OOP in C++ like 2 years back but since then i
did'nt took any of programming language courses. I
have experience in MSaccess and MYsql. i did my
internship Last summer with Tennessee Education
Lottery as a Database Analyst. At that time i
realized what a Corporate Enviorment looks like.
Trust me it was a formal interview and i passed it
and they placed me in the IT department to write some
scripts for the GUI terminal and at the same time
create a Company Security Database.Wow they really must like to gamble if they put you in charge of a security database - no offense meant, but that isn't the sort of thing you would want a brand new person working on, unless of course they were giving really high odds ;-)

I want to learn web dynpro in UK

i want to learn web dynpro in UK through remote servers by self learning.WHO provides remote servers.what r the pre requisites for webdynpro for ABAP

You can install your own Server from [this link|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/80fd9a0a-e306-2a10-c896-b84c77c13ed2].

I want to learn web dynpro for ABAP in UK

i want to learn wen dynpro for ABAP in uk through remote servers.who provodes the best remote servers.
whether abap and java is a
pre requisite for learning webdynpro?

Vijay,
check this link to download trial version of the server.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/80fd9a0a-e306-2a10-c896-b84c77c13ed2
http://www.sapdevelopment.co.uk/webapps/webdynpro/wdphome.htm
https://www.sdn.sap.com/irj/sdn/nw-composition?rid=/webcontent/uuid/512040e1-0901-0010-769c-c238c6ca35d9
http://help.sap.com/saphelp_erp2005/helpdata/en/b9/b82c4142aef623e10000000a155106/frameset.htm
https://www.sdn.sap.com/irj/sdn/webdynpro?rid=/webcontent/uuid/60ea94e5-0901-0010-c3bb-aad5ea9620d8
do a search in sdn and you will find lot of materials
Thanks
Bala Duvvuri

Want to learn j2ee

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