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I am learning how to use JSTL in my application.
When i was ready download it from Internet, I found there are two kinds of JSTL.
The first one is from http://tomcat.apache.org/taglibs.html, another is https://jstl.java.net/. Though files' names are different, it seems they both works.
What's the different between them? Which one should I use?
Like as everything else in Java EE, JSTL is an abstract API. The concrete code is provided by the implementors. Oracle is one and Apache is another one.
Which one to choose is up to you.
See also:
Our JSTL wiki page
What exactly is Java EE?
Related
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Any idea?
How can I generate documentation using already present code in java class / classes. As the java class changes, I would want it to reflect in documentation automatically.
Regards
Monica Soni
There are some tools available on the market that scan your code and generate a documentation for it. A known tool which does it, and my favourite, is Javadoc. It also allows you to add annotations to the code which later be reflected in the documentation.
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Hi i am new to java and facing difficulties in learning methods and their parameters , tell me the best way of memorizing all methods,interfaces names etc
Use an IDE. Code completion is a wonderful thing. In eclipse I love to type syso ctrl-space and watch System.out.println() magically appear. I love to hover my mouse over a method and have the java docs popup and tell me what it does and what it needs.
Use google. Use stackoverflow. Use github. Use your own code once you've written enough stuff.
Also realize those of us who've been coding for decades still have to look some of this stuff up. So you're not alone.
It also helps to use cheetsheets:
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I have read the following about JSP this
But there is no discussion about servlet technology.
My Question is "Are servlets being used today, or are they deprecated ?"
Actually I need a update . :)
It is not deprecated. They are still releasing new features on the latest Servlet (like async Servlet).
And many of the Java web frameworks are building on top the the Servlet technology.
But it might be right that less people are using it directly since it is so easy to use one of the Java web frameworks (which built on top on Servlet).
Yes, Servlet(s) continue to be used. Even if you never write one, every JSP (per the linked Wikipedia article) is one.
JSPs are translated into servlets at runtime
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I´m starting to use PMD and I really want to know which are the most important rules or the rules that anybody can´t miss when using this tool.
I´m looking for some article or page with a list of rules that must be used in PMD, this tool has a lot of rules and it's difficult to select only a few of them.
Thanks!
The answer to this question is both general and subjective. However, the sourceforge pmd site has a list of some pre-packaged rulesets:
http://pmd.sourceforge.net/pmd-5.0.5/rules/index.html
You should probably use at least the basic ruleset. Beyond that, it's up to what kind of project you are working on and which rules apply to it.
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Co-Browsing in the context of web browsing, is the joint navigation through the Internet by two or more people accessing the same web pages at the same time.
for more information please have a look at http://en.wikipedia.org/wiki/Cobrowsing
here are some paid alternatives which does this
http://www.livelook.com/co_browsing.asp
http://www.unblu.com/
any help regarding what technology is being used to implement this or technical specifications ?
i am trying to implement co-browsing using java, has any one have prior experience with that if its possible or any existing java library doing the same?
if there is not any solution what approach should i use to implement this.