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Now I understand.
You have an instance for each user, so the variable must not be static. If it is possible to set the value in the constructor, then that is the best thing because you can make the member variable final and so it cannot be changed.
It is strongly advised to not expose member variables outside the class, it is ALWAYS better to use in this case a method; as I used in my example. If the variable is final, then you can to some extent relax the rule as there is no way it can be changed; but this is normally reserved for constants.
Panic, Chaos, Destruction. My work here is done.
Drink. Get drunk. Fall over - P O'H
OK, I will win to day or my name isn't Ethel Crudacre! - DD Ethel Crudacre
I cannot live by bread alone. Bacon and ketchup are needed as well. - Trollslayer
Have a bit more patience with newbies. Of course some of them act dumb - they're often *students*, for heaven's sake - Terry Pratchett
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my +5.
I would like to point out that the UserID should also be an automatically created number that the user object should not modify - it's hard to identify the data otherwise.
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Nanda_MR wrote: How to set Global variable for session
You start by researching how to handle session data in a web application.
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Hi,
I have a problem on getting the project path of a web application.
Reason on getting the project path is I'm uploading a PDF Files to the project path so that I can open it to the browser, I'm hoping to do this http://localhost:8080/PDFviewer/UploadedFiles/sample.pdf.
I have found something in the Internet but the path is not in my project path
getServletContext().getRealPath("/");
My project path is D:\Java\Java Web Projects\PDFviewer but the above code is giving me D:\Java\Java Web Projects\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\PDFviewer
Can anybody please suggest a way of getting the application path in java.
Thanks... 
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The path the system gives you is correct, because the web server is placed in the wtpwebapps folder.
Try to deploy it and see if the path comes up correct on a test system. I assume so.
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Thank you very much it work perfectly what I expected... 
Even if its not in my Eclipse Web Project it can view the pdf.
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you're welcome.
This can be confusing, one is never secure to not struggle on such things.
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yes, I'm really confused...
I can't see the uploaded files in my Eclipse App..
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want to convert the content of video to byte in java could any body help me to do that?
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Please anybody help me to implement Video Conferencing in my project Virtual Classroom using Java Media Framework and servlet.
Thanks
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What is exact diff. between the operator,constructor and method overloading.....Give some examples also....
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Classes and Objects[^]
Overriding Methods[^]
I can recommend to by a good book explaining the basics. And I can recommend to read them even one has already worked in the business( kind of back to roots)
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when i want to deploy my application in tomcat server it can't and this is the error message
init:
deps-module-jar:
deps-ear-jar:
deps-jar:
library-inclusion-in-archive:
library-inclusion-in-manifest:
compile:
compile-jsps:
Undeploying ...
undeploy?path=/Mango
OK - Application non-déployée pour le chemin de contexte /Mango
In-place deployment at D:\PFE\Mango\build\web
deploy?config=file%3A%2FC%3A%2FUsers%2FBouali%2FAppData%2FLocal%2FTemp%2Fcontext4268238340729989227.xml&path=/Mango
FAIL - Deployed application at context path /Mango but context failed to start
D:\PFE\Mango\nbproject\build-impl.xml:847: The module has not been deployed.
See the server log for details.
BUILD FAILED (total time: 2 seconds)
I await your answers in short delays. thank you in advance
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The build script is already telling you what you should be doing next. Locate and look into the catalina.out file for more details as to why the web app failed to start.
As to where the catalina log files are, that depends greatly on what type of Tomcat install this is. If it's integrated in Netbeans then it's located in the .netbeans/7.1.1/apache-tomcat/logs.
If it is a debian / ubuntu based linux its found under /var/log/tomcat
In either case the catalina log will show the root cause of the failure to start. But it's most likely something in the web.xml that is wrong.
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Hello there,
Above subject is my project topic.
So i need help for executing it properly on my Windows XP system.
Installed Software.
1.JDK
2.Tomcat
But i dont know how compile the code in eclipse.
Plz help me out.
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cloudagent wrote: Plz help me out.
Read the eclipse help pages which explain how to create and build a project; it is really quite simple.
When you have a more specific technical question feel free to come back for further help.
Binding 100,000 items to a list box can be just silly regardless of what pattern you are following. Jeremy Likness
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cloudagent wrote: But i dont know how compile the code in eclipse.
Hopefully either you have more than a beginner level of programming experience in java or have at least a mid-level experience in programming something like C++ or C#.
Otherwise in terms of what one might suppose "project topic" means you have bitten off more than you can chew.
If you do have that then it might help to note that you don't need eclipse to use tomcat.
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i have ontology and i made a query on it in java with jena ,lets say that i search for "car" my request is how i retrieve all relations that related with "car"
note:i used wordnet into java but the result is so poor
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in documentation I found code describe all the ontology in java but what i want is when i ask for "car" the result be all relations that related to "car"
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Hi All,
I have a problem which is bit tricky for me. The problem is - A table is get display on my screen by another application. I have no rights to access that application. This table is also get refreshed in a time interval of 5 to 10 seconds. Now my problem is to fetch the data from the table displayed on the screen and prepare a separate report for every time interval.
So please help me to write the api for desired functionality.
Thanks in advance.
rks
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You will have to interact with the host operating system for this. Java is really the wrong tool for the job.
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