Learning about Java Beans. Help!.

Hello all.
I want to learn to create and use JavaBeans, but not by where to begin.
Somebody can explain to me that it is a Java Bean and as is used.
Knows some site where it can see examples or it has a tutorial on Beans.
Thank you very much.

Hi
I've just started learning Java too on my own. What I know about JavaBeans for the moment is that a JavaBean is a visual component you can create and give methods(setters and getters).
For example: JPanel, JLabel, JTextField, these are examples of JavaBeans, but you can also create them by yourself.
I use JBuilder 5 Enterprise from Borland. You can download JBuilder 6, trial version I belief from www.borland.com. I'm not certain.
How do I create JavaBeans in JBuilder?
First you have to create a new Project. Then you can go to the menu File/New and you choose to create a JavaBean. Then JBuilder asks for some information, which package, name, base class...
I've made a JavaBean, xJTextField. With each JTextField, ussually you also have a JLabel, so I've created a JavaBean xJTextField based on a JPanel. In that panel I've placed two components, a JTextField and a JLabel. I've added some methods and that's it. Now I can place an instance of xJTextField on every frame and automatically I have a JLabel and JTextField.
I have just begon too with Java, I hope I helped you a bit. If you would like it, I can send you my project with my JavaBean and some explanation.
Do you know some interesting websites about J2EE?
Rik

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can anyone tell me those all clients share the same java bean??

Generally the answer is: depends :-) What's your context?
Greetings
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PS: did you solve your problem with the lost relationship table in 1:* cmp managed EntityBeans with the j2ee RI? Sorry to bother you - but I would like to know a solution if possible

How do you begin learning about Java?

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I am still learning myself. I have dabbled in programming since about 1976 when BASIC was available on the TRS-80 Model 1 but never did anything serious.
Start with the Java Tutorials at http://java.sun.com/docs/books/tutorial then look at other tutorials. There are some here:
<ul><li>Java Beginner Tutorial by
Srini Appikatla</li>
<ul><li>[http://www.javabeginner.com/]</li>
</ul>
</ul>
<ul><li>Java Advanced Tutorials on
ipodlot.com</li>
<ul><li>[http://www.ipodlot.com/javalearner/test/advanced.htm]</li>
</ul>
</ul>
I haven't worked through all of them but they look good so far.
Next, buy some books. I like "The Java Tutorial" Forth Edition. Yes, it is the same as the web site but it is easy to read sequencially. It doesn't cost much, used on Amazon.
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Also
http://java.sun.com/products/hotspot/docs/whitepaper/Java_HotSpot_WP_Final_4_30_01.html
http://java.sun.com/developer/technicalArticles/Programming/turbo/ and the documents referenced at the end of the article
http://java.sun.com/docs/hotspot/gc1.4.2/faq.html
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What is the best and cheapest way to learn java?

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: is the one I use the most. If I don't understand a specific computing term then I look it up at :
http://www.webopedia.com/
: which is a very good online encyclopedia of computing terms.
There is also :
http://www.joegrip.com/
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hi,
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Hi,
I want to import data from an excel file to oracle database. for this purpose i have find a java bean on :
http://sites.google.com/site/jvrexcelproject/version-1-5-1-english
i have download it.
i put the jar files on forms/java
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add Bean area in your form and set its Implementation class to oracle.forms.jvr.xls.Read (case sensitive)
yesterday i wrote a new blog post about java bean but very basic ....... might help u to setup the thing
http://baigsorcl.blogspot.com/2010/02/how-to-add-java-bean-by-writing-your.html
Baig
[My Oracle Blog|http://baigsorcl.blogspot.com/]

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Hi, I need some help with my login form.
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Alright,here is an example for you.
Assume a case where you don't want to give access to any JSP View/HTML Page/Servlet/Backing Bean unless user logging system and let assume you are creating a View Object with the name.
checkout an example (Assuming the filter is being applied to a pattern * which means when a resource is been accessed by webapplication using APP_URL the filter would be called)
public doFilter(ServletRequest req,ServletResponse res,FilterChain chain){
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to know more insights about where these can used and how these can be used and how ?? the below links might help you.
http://javaboutique.internet.com/tutorials/Servlet_Filters/
http://e-docs.bea.com/wls/docs92/dvspisec/servlet.html
http://livedocs.adobe.com/jrun/4/Programmers_Guide/filters3.htm
http://www.javaworld.com/javaworld/jw-06-2001/jw-0622-filters.html
http://www.servlets.com/soapbox/filters.html
http://www.onjava.com/pub/a/onjava/2001/05/10/servlet_filters.html
and coming back to DAO Pattern hope the below link might help you.
http://java.sun.com/blueprints/corej2eepatterns/Patterns/DataAccessObject.html
http://java.sun.com/blueprints/patterns/DAO.html
http://www.javapractices.com/Topic66.cjp
http://www.ibm.com/developerworks/java/library/j-dao/
http://www.javaworld.com/javaworld/jw-03-2002/jw-0301-dao.html
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http://www.fluffycat.com/java-design-patterns/
http://java.sun.com/blueprints/corej2eepatterns/Patterns/index.html
http://www.cmcrossroads.com/bradapp/javapats.html
Hope that might help :)
REGARDS,
RaHuL

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guys i need ur help.
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I'd suggest forgetting about Java until you have
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Sstm.out.prntln("Hw r u!");
ode]and complain about "Jav bad, Jav not run".
followed by someone launching a JSR "SMS 1ee7 sp3ak syntax for Jav" which gets immediately approved.

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is there any tutorial for learning java bean for beginners?
regards.

i thank you very much.
i am new to java beans, as such i do not have any knowledge about it.
aren't there some tutorials with guided practice? it would be kind of you could tell me some links where i can have them.
regards.

Need help for traping imported java bean exception

hi everyone
i have imported a java bean into my forms 9i using java importer utility which tries to rename a file on a give path(bean works fine when executed through sql client).
i have problem when called from when button pressed trigger, it throws me an ("FRM-40735 and ORA-105101 NON ORACLE EXCEPTION") error.
i have imported java.lang.exception class and constructed an exception handler to trap java exception in the trigger
as
EXCEPTION
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yash

Hi,
don't understand what the BIException is supposed to do in your code, can you try
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Frank

I have a new iPhone 5S. While trying to learn about it, I accidentally recorded a voice memo with no content. I cannot now figure out how to get rid of it. There is a banner across the top of my phone with this memo which I don't want. Help!

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Learning about Java Beans. Help!.

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