Experts in java -behold my question

my problem is:
i have a jar.there are two packages in the jar
in the fisrt package i have some class call registar.
the second jar i have many classes .
i want to use a function in registar which loop all the files in the second jar ,and have them in some array.
all this when i am running the jar
yoav

all i managed to do was to load a class if i know the name and can cast it.but when i dont know the name,and it found on different jar,that on so trivial
i will be more spesific.jar a has two classes a.class and b.class
its in jar hello.jar.
second jar ,read the entries in the hello jar,and then using something like URLClassLoader methods(which i didnt figured which and how),will insert the name of the class as key in map,and the className.class as a value in th map
the result will be
string |a.class(not string presentation but the object it self)
you were right telling me to use the URLClassLoader/CLassLoader but how?
if you can be more spesific it will be great
thanks,yoav

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Language experts: Port Java Code to AS3?

Hello out there,
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Any comment or advice will be greatly appreciated.
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Thanks to you all.
In the meantime I read "Actionscript for Java developers"
http://www.javaworld.com/javaworld/jw-02-2009/jw-02-actionscript1.html
and it seems like the two languages are not too far apart.
Of course there are differences, but we only need to consider those features which Java has and AS has not (like method overloading) and modify our Java sources to not use these. Since the goal is not to have a universal tool which translates _any_ kind of Java source to AS but only our specific code base I think it will be worth a small effort to test how far we get with a machine translation.
Yes, libraries may well be an issue - but again, I would have to see which (library) functions are actually used and how to replace them.
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BlueNo yel-- Auuuuuuuugh!
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WD Java iView Creation Question/Issue - CE 7.1 EHP 1 Trial

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Hi Williem
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everyone. I have question.
I want codes in Java for AVL Tree.
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It`s main for me.
If you know, please write in code JAVA or contact e-mail.
or link to page or if you have self code.
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[email protected]

I have a better idea.
Why don't you try to do it yourself, and when you get stuck, post your code and details of what difficulty you're having.
When you post code, please use[code] and [/code] tags as described in Formatting tips on the message entry page. It makes it much easier to read.

Java Programming Language questions...???

Hi everybody....
Can I post here my questions about Java Programming Language....or only to to the relevant Sun's forum....http://forum.java.sun.com/index.jspa???
My greetings,
Simon

Simon,
sure, the worst thing that could happen is that people point you to the SUN forum. Usually this forum answers general Java questions.
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Java reflection (interesting question)

hi folks,
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void foo() {
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class B extends A {
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hi bondvenky,
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asjf

Java/OO Design question. Please help!

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weblogic.developer.interest.ejb newsgroup
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www.theserverside.com
or
http://forum.java.sun.com/
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"Brian Snyder" <[email protected]> wrote:
>
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You might want to post the question to the Agile forum
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Java Usage Concept Questions

I have a java Command line running program. Which allow input/edit data of clients and store them into a Flat file. The problem is that i have to make a GUI, ( a thin web based client ) and using only HTML and Javascript.
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Hello,
You a little off on a few things. let me explain what each is used for to give you a better idea what each i used for.
HTML - Used to format data. Is static and can't do any File I/O and such
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--Zer0C00L

"Can you list me some features of the java language"(Interview question )

Hi,
This was a question I got yesterday in an interview, exactly as the interviewer said it.
I listed off it's cross platform feature... what else would you have added?
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It does if you put <sarcasm> tags in/Too easy, and that wasn't the point back then anyway. :)
Look at this forum sometime and see how many people
cram procedural code into a main and still call
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Hire a java expert for java proxy server.

hello,
i need a expert java programmer to hire for a simple java proxy project please contact me if you are intrested please leave me a message for more info.

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Transport is is picked by the client from wsdl.
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Ashwani

Java.lang.ExceptionInInitializerError question

Hi, the following two postings were sent to the Programming forum, and we were referred to the Cryptography forum. Any ides on this problem, cryptography gurus?
This topic has 2 replies on 1 page (Most recent message: Jul 8, 2002 11:27 AM)
Having a problem with Java Cryptography Extension (JCE)
Author: dnhll23 Jul 6, 2002 2:11 AM
Hi, this is my first attempt at using the JCE. I'm using JCE 1.2.1
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classes. Here is my code Fragment.
protected FileOutputStream encriptFile(FileInputStream baseFile,
File encFileName) throws IOException
try
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FileOutputStream encriptedFile = new FileOutputStream
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Provider sunJce = new com.sun.crypto.provider.SunJCE();
Security.addProvider(sunJce);
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SecretKeyFactory keyFactory = SecretKeyFactory.getInstance
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System.err.println(e);
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My problem arises with the line "SecretKeyFactory keyFactory =
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java.lang.ExceptionInInitializerError
java.lang.ExceptionInInitializerError: java.lang.SecurityException:
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(The rst of the stackCall here)...
From what I've read in the documentation, I need to have a provider
set up that handles the SecretKeyFactory and encryption algorithms,
but the documentation also says that the SunJCE provider that I set
up near the start of my method should have been able to handle this.
Is there anyone out there with expeience doing this kind of thing
that can help.
Thanks
Re: Having a problem with Java Cryptography Extension (JCE)
Author: mutmansky
In Reply To: Having a problem with Java Cryptography Extension (JCE) Jul 8, 2002 11:22 AM
Reply 1 of 2
Have you figured out an answer to this problem yet? I'm having a very similar problem. I'm running an applet that needs to decrypt information that it is retrieving from CORBA and I'm getting the following exception:
java.lang.ExceptionInInitializerError
at javax.crypto.Cipher.getInstance(DashoA6275)
at CorbaDecrypt.doDecryption(CorbaDecrypt.java:132)
at EventChannelListener.run(EventChannelListener.java:325)
Caused by: java.lang.SecurityException: Cannot set up certs for trusted CAs: java.lang.SecurityException: Cannot verify jar:file:C:/PROGRA~1/Java/J2RE14~1.0_0/lib/security/local_policy.jar!/
at javax.crypto.SunJCE_b.<clinit>(DashoA6275)
... 3 more
I'm using JDK 1.4 so, there's no need for my code to have the two Provider setup lines, but otherwise my code looks much the same as yours. The code works fine when run in a test app on the server, but not in the Applet. The file that it's looking to verify (local_policy.jar) does not exist, and I don't want to create one manually, because my users would have to do that then too, which is unacceptable. I am using a trusted applet, so I'm not sure what more I can do to grant the applet the proper permissions. Does anyone have any ideas what we need to do here?
Thanks.
Steve

Hi all --
I'm have the same problem as the initially posted question. I'm using JDK 1.3.03 and I get the following excepion:
Exception in thread "main" java.lang.ExceptionInInitializerError: java.lang.SecurityException: Cannot set up certs for trusted CAs
at javax.crypto.b.<clinit>([DashoPro-V1.2-120198])
at javax.crypto.SecretKeyFactory.getInstance([DashoPro-V1.2-120198])
at PasswordEncoder.encrypt(PasswordEncoder.java:28)
at PasswordEncoder.main(PasswordEncoder.java:89)
I've followed all the instructions for installation and configuration in the JCE User's Guide.
Any suggestions?
Thanks all.
Niran

Java.util.logging question

'Lo all -
I'm new to Java, so bear with me on this question - I'm sure it has a simple answer.
I am using the following code to create a new Logger object:
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Message was edited by:
malakh

Man, I REALLY hate to do this, but it looks like I may be forced to work around it instead of fixing the issue. I'll have to add some code to manually remove the java01.log file when it's done writing to it.
Navy - Turns out that Log4j is pretty much the same thing as java.util.logging, except on steroids. It is almost identical syntactically, just has more options and more flexibility than JUL.

Four Java Applet signing questions

hi all;
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2. Is it possible to keep that "Security Warning" Alert box on top so that the user will not be able to accidentally ignore it (it goes under the browser and stays there).
3. Is there some way to inspect the PC to determine weather your applet loaded properly - apart from seeing a properly working applet ? For example , If I want to make sure it is being cached properly.
4. When a new version of the applet is available on the server ? how does the browser know to download something ? is that something I would code for manually or would is this automatically handled behind the scenes.
Thanks in advance
Stephen

I can only reply to nr 1 but looking at java.security.AccessControl there is a method called checkPermission() you can use.

Experts in java -behold my question

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