How do i Create charts using JSP/Servlet & Database

I have to create charts which shows the graph of stock exchange.
i have a database that keeps the data for creating charts.
But i did not know how to create charts using jsp-servlet.
Any Example might help me to go forward.
Any help will be really appreciated.
Please Advice me.

JFreeChart - You can generate the charts then convert them to image formats (PNG and JPEG) all using the JFreeChart API
http://www.jfree.org/jfreechart/

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Re: How do you create and use "common" type classes?

Hi,
You have 2 potential solutions in your case :
1- Sub-class TextNullable class of Framework and add your methods in the
sub-class.
This is the way Domain class work. Only Nullable classes are sub-classable.
This is usefull for Data Dictionary.
The code will be located in any partition that uses or references the supplier
plan.
2- Put your add on code on a specific class and instanciate it in your user
classes (client or server).
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also be in any partition that uses or references the supplier plan where your
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You can find an example of the second case (using a QuickSort class,
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http://perso.club-internet.fr/dnguyen/
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Daniel Nguyen
Freelance Forte Consultant
http://perso.club-internet.fr/dnguyen/
Robinson, Richard a écrit:
I'm relatively new to forte and I'd like to know how can you handle utility
type classes that you want to use through out your application? Ideally
what I want is a static class with static methods.
Let's say that I have a StringUtil class that has a bunch of methods for
manipulating strings.
My problem is that we have code that runs on the client and code that runs
on the server. Both areas could use the StringUtil class, but from what I
understand, I have to create StringUtil in a plan and then create a server
object of type StringUtil. The server object will eventually get assigned
to a partition. That's not good since I really want the server object to
physically reside at the server end and at the client end. (Actually, I
don't want a server object, I just want to invoke a static method of a
static class).
Any clues on how to solve this problem would be appreciated.
Also, what is the url at Sage-it that has a summary of all emails that have
been posted to [email protected]? Perhaps this question has been
answered previously.
Thanks in advance
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>-
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

Hi Richard,
Your question about "utility classes" brings up a number of issues, all of
which are important to long-term success with Forte.
There is no such thing as a static method (method that is associated with a
class but without an implicit object reference - this/self/me "pointer") in
TOOL, nor is there such thing as a global method (method not associated
with a class at all). This is in contrast to C++, which has both, and
Java, which has static methods, but not global classes. Frequently, Forte
developers will write code like this:
result, num : double;
// get initial value for num....
tmpDoubleData : DoubleData = new;
tmpDoubleData.DoubleValue = num;
result = tmpDoubleData.Sqrt().DoubleValue;
tmpDoubleData = NIL; // send a hint to the garbage collector
in places where a C++ programmer would write:
double result, num;
// get initial value for num....
result = Math::Sqrt(num);
or a Java programmer would write:
double result, num;
// get initial value for num....
result = Math.sqrt(num);
The result of this is that you end up allocating an extra object now and
then. In practice, this is not a big deal memory-wise. If you have a
server that is getting a lot of hits, or if you are doing some intense
processing, then you could pre-allocate and reuse the data object. Note
that optimization has its own issues, so you should start by allocating
only when you need the object.
If you are looking for a StringUtil class, then you will want to use an
instance of TextData or TextNullable. If you are looking to add methods,
you could subclass from TextNullable, and add methods. Note that you will
still have to instantiate an object and call methods on that object.
The next issue you raise is where the object resides. As long as you do
not have an anchored object, you will always have a copy of an object on a
partition. If you do not pass the object in a call to another partition,
the object never leaves. If you pass the object to another partition, then
the other partition will have its own copy of the object. This means that
the client and the server will have their own copies, which is the effect
you are looking for.
Some developers new to Forte will try to get around the lack of global
methods in TOOL by creating a user-visible service object and then calling
methods on it. If you have a general utility, like string handling, this
is a bad idea, since a service object can reside only on a single
partition.
Summary:
* You may find everything you want in TextData.
* Unless you anchor the object, the instance will reside where you
intuitively expect it.
* To patch over the lack of static methods in TOOL, simply allocate an
instance when required.
Feel free to email me if you have more questions on this.
At the bottom of each message that goes through the mailing list server,
the address for the list archive is printed:
http://pinehurst.sageit.com/listarchive/.
Good Luck,
CSB
-----Original Message-----
From: Robinson, Richard
Sent: Tuesday, March 02, 1999 5:44 PM
To: '[email protected]'
Subject: How do you create and use "common" type classes?
I'm relatively new to forte and I'd like to know how can you handle utility
type classes that you want to use through out your application? Ideally
what I want is a static class with static methods.
Let's say that I have a StringUtil class that has a bunch of methods for
manipulating strings.
My problem is that we have code that runs on the client and code that runs
on the server. Both areas could use the StringUtil class, but from what I
understand, I have to create StringUtil in a plan and then create a server
object of type StringUtil. The server object will eventually get assigned
to a partition. That's not good since I really want the server object to
physically reside at the server end and at the client end. (Actually, I
don't want a server object, I just want to invoke a static method of a
static class).
Any clues on how to solve this problem would be appreciated.
Also, what is the url at Sage-it that has a summary of all emails that have
been posted to [email protected]? Perhaps this question has been
answered previously.
Thanks in advance

How do I create and use a watermark in aperture?

Hello there!
How to I create and use a watermark in aperture? do I need to download a 3rd party plugin? Any recommendations?
Thank you!

Aperture does not support the creation of watermarks; if you want a watermark image with transparent regions you need an application that can handle alpha channels - Prewiew, Photoshop, Pixelmator, Gimp, just to name a few.
But once you have a watermark image, you can add it to an image, when you export from Aperture. Add the watermark to one of the Export Presets. You will need to create your watermark in different sizes, so you can add it to each of the export pixel sizes for your images, that you are using.
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How do I create and use a ringtone without syncing and without jailbreaking?

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How to call java method using jsp

how to call java method using jsp.....
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Examination system using JSP/SErvlet and MySQL

Hi
I am new to JSP /servlet.
I am designing online examination system using JSP/Servlet and MySQL ,where multiple choice questions would be selected randomly from the database. After completion of the examination user gets the results ,also the results would be stored in the database for the future reference.
Can anyone guide me for this? If possible give me the code for similar type of application.
Thanks

Sounds like you want someone else to do your homework for you, did you not read this:
"This forum works so much better when you try to program the code yourself, then let us know where it doesn't work. Otherwise you learn very little, and we work a whole lot."
and this
"If you want free code, have you tried searching Google for it? You may want to consider looking for survey software. It will give you the question/answer capabilities then all you have to do is find a way to grade the survey (if you will)...
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How can I create Droplets using Actions with several Stops?

My Droplets (using Actions but with several Stops) work very nicely when using a single image source. However when using multiple images thing start to go crazy.
At the first stop on the first image a pop-up emerges asking me to continue to the next image or stop. If I select stop I can continue with the Action for this first image and complete the Action on that first photo.
If I select continue it halts the action on that photo at the first stop then opens the 2nd image and repeats the action to the first stop on the next photo then the pop-up appears again and the cycle repeats.
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How do i Create charts using JSP/Servlet & Database

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