Few question about Java and MySQL connection

Hi!
I have some problems with creating connection between Java and MySQL.
I followed the restrictions in mysql-connector-java.jar' readme, I set the CLASSPATH :
CLASSPATH=.;D:/mysql/mysql-connector-java.jar;
I copied this jar file to the right place (descripted above), and I used the right steps to load it:
Class.forName('com.mysql.jdbc.Driver"); and it throws a ClassNotFoundException
Why? All the paths are correct, everything is on the right place.... I dont know why.
When I installed the JBuilder8, and copied the jar file to JBuilder8/jdk4/jre/lib/ext it worked without any CLASSPATH in enviromental variables.
If I want to run my program on machines where are not JBuilder, what should I do?
Please help, if you can.
Thanks,
henpanta

Yeah. So if I compiled my program with JBuilder to an .exe file, I cant run it on other machines, if the jar file isnt in the same place?
If I tried your advice, java -classpath mymainclass I got the next message:
main class not found. Believe me, its there. :(

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1- .netrc file is in $HOME directory but i can't
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Ok, thanks
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Few questions about j2ee and my program

Hello
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Hello
I'm new on this forum and in j2ee :)Welcome.
I've to write program which should be in working
similar to video on demand system but without
streaming movies only database and etc."streaming database"? Not sure what you mean.
I'm gonna write database in mysql. It will contain
user and movies. I'll use the tomcat server.Sounds ambitious for somebody who's new to Java and Java EE
Can you tell me what should i learn to do it, i mean
can i use jdbc to do it or maybe i should use
something diffrent, and what will i need more i mean
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Sorry for such a question but i'm just beginner in
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New to Arch(64), with a few questions about Xorg and more

Hello and Happy New Year everyone,
I'm a user that has just recently decided to try and switch to Linux as the main OS for all things that don't concern gaming. I've been using the "server side" of Linux at work for a couple years now, but when it comes to its desktop part I consider myself not fully competent yet. Under recommendation of a friend I decided to give Arch a shot, and I can say that it really suits my philosophy on how an OS should be like.
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Last edited by Akaraxle (2009-01-03 21:25:43)

xisal wrote:
Take a look into /etc/hal/fdi/policy/10-keymap.fdi. This works with portuguese layout:
<snip>
The file did not exist, so I created it and changed "pt" to "it". Thanks a bunch, that fixed it!
Try SMPlayer.
Ah, I'd rather not involve Qt. Besides, isn't SMPlayer simply a frontend to Mplayer (who already has GMplayer integrated into it, IIRC)?
Mikko777 wrote:
Why would you want to use 75Hz with lcd display?
Does it make a difference?
On my monitor, from my point of view, it appears to make a difference. It's that simple
azleifel wrote:In gmplayer Preferences -> Audio -> (assuming alsa selected) -> Configure driver and change the mixer channel to something other than PCM, e.g. Master.
For all the three combos, I have "driver default" selected. The other option is "default"; I tried to manually type "Master" into the mixer channel field, but then gmplayer's windows and my Xfce taskbar started blinking, so I knew I had just "crossed streams".
Regarding NVIDIA X Server Settings, running "usr/bin/nvidia-settings --load-config-only" at login is the only way to apply the settings "automatically".
I've slapped that on my ~/.xinitrc before "exec startxfce4". Thanks in advance, going to test it now!
About the refresh and non-decorated windows issues (which *appears* to be solved after I've wiped the xfce-session cache), I've been thinking: could they somehow be related the login manager I've chosen, SLIM?
P.S. New question: is there any way to enable the ALT+num126 for ~ keyboard behaviour I'm used to under M$ environments?
Last edited by Akaraxle (2009-01-03 09:43:02)

A few questions about Canvas and other Image related stuff.

I am just starting to play around with Canvas in the hopes of using it to make a little game (not an applet) in my spare time. I have gotten a ball to bounce around the screen and switch colors when it bounces without too much work. (hooray for me!).
I was wondering:
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2) Can there only be one canvas per frame, or if you can have more, like say, one for each sprite (I tried in my own simplistic way but the second canvas overrode the first when I added it to the frame) or do you have to lay out all the sprites in one canvas every time before you paint?
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4) In a call to paint which tells it to display some images which are much larger than the frame the canvas is in, is time and effort spent working on those pixels that aren't displayed or does it take about the same amount of resources as for images that fit in the frame since the same amount of picture is actually displayed?
5) Is there any convenient way to layers with canvas besides just controlling the order in which the images are painted. (I will admit I haven't searched for this information yet, because I just thought about it.)
6) Is there any other information you guys would care to bestow on me?
If any of this question is ridiculous, obvious, ignorant or any other negative adjective, then I apologize. I will continue messing around in the meantime.
Thanks
--John

Okay, well I got it to work by drawing them both to the same canvas. duh I guess.
Can you have more than one canvas in a frame? How do you set the size if so.
How do I implement the z-order? I thought of doing it manually by sending the paint method a list of objects to paint and manually managing the order of that list. Would that be an acceptable way to do it?
Should I only be trying to paint to one canvas? What I would like to do is have several canvases with transparent backgrounds so that I can draw different layers in the same frame. That way flying stuff would be painted on a different canvas than stuff on the ground, and then putting it all in a frame would tie the pictures together into a scene. Kind of like how they do distance in animation by having different layers of drawings on clear plastic that they can move at different speeds to give the illusion of depth.
Any advise? Sorry for the douba-post
Thanks
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A question about JDBC and MySQL

hello dear friends,ask a question:
if in MySQL database, i have defined a clumon as TEXT data type.
when i use JDBC, i use which kind of java data type to hold TEXT,
i mean which getXXX() method i should use.
is it possible i just use getObject() and cast it to a binarystream??
thanks in advanced.

use this:
declare it 1st
String x ="";
then u can now get the value of the field...
x = getString("<fieldName>");is there length limitation?
for example, i want store a String which is got from a JTextArea, i also treat it as String and insert into the column with TEXT datatype like
insert table_name (text_column) values( string_1)
this works in JSP, should work in JAVA too...
hope i helped... ^_^

Few questions about partitioning and formatting in Windows 8

Hello,
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Before using Windows 8, I was an XP user for 5 years and I actually never bothered myself with formatting my main system partition, that's probably why my computer ended up working like a slime for the last years. Anyway, by now I have been using Windows 8 for a year.
Three weeks ago I faced a system-related problem with my laptop (IdeaPad Y580) which prevented it from peacefully shutting down. A good friend of mine (XP user for his entire life, and now Windows 7 newbie user) told me, that I should keep all my non-system stuff on separate partition and that I should do the main system partition format from time to time to keep my PC out of trouble. It is sure that he took his knowledge from using XP, and here's my first question - does this method apply to Windows 8?
I mean as far as I know, back then, in XP, partitioning was possible only during Windows installation, and now, in Windows 8 we have a Disk Management for this, which do not require running Windows installation to create new partitions.
I'm mentioning this due to the fact that originally (I mean by factory settings) my drive has only one visible partition - C: (1TB), so I would need to use the Disk Management to take some space from C: partition and allocate it to the new D: partition.
In case I do this whole partitioning operation and create a D: partition, is it sure that formatting my system-only C: partition won't have effects on my D: partition, and all the programms and data I have here will stay on their places and work after format? (I'm worried about this because I've seen in some partitioning guide a warning not to format the main partition after the partitioning operation, because it would erase totally all data - I'm not sure if I misunderstood something or is it a mistake? EDIT: here's the link for this guide, just jump to the "Final Thoughts" section to see what I'm taking about: http://www.technorms.com/8438/windows-8-create-hard-drive-partition ).
If this whole method of keeping your system running fine doesn't apply to Windows 8, I guess I'm okay with having only one C: partition.
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I just found out that I can't even transfer my Users folder or Program Data to other drive than the one with the system, because it would prevent me from updating my system or even from actually booting to my system. So apparently my whole topic is for nothing... I guess I should live with only one drive, and whenever my system totally crashes again I should do the backups to my external HDD. It's sad though that Windows 8 is a total opposite to user-friendly OS, to say the least.

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I have a P4 CPU HT in it with 2 512mb sticks of DDR2 memory (533mhz).
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I get confused as my current memory is 533 which I guess on a Pentium 4 with HT cuts the FSB speed in 1/2 to 266mhz.
Any recommendations?
Do I need to buy Dual Channel or can I just buy 2 sticks?
Thank you
Peter

Quote from: /dot on 07-February-07, 15:46:41
Great info again guys!
I'll stay away from OCZ (I read it's more for overclockers).
@DryHeat:
I watched your sig, great setup! I'm planning for about the same setup (MSI 975x PUE, P180, C2D, ...). But will try a Scythe Ninja for CPU cooler and use an MSI graphic card (maybe 2 cards for 4 monitors in total).
Is your setup silent or just quiet? Makes a big difference for me.
What would you change now? And what is the most noisy component?
Sorry for all the questions but I'm not an expert and by budget does not permit me from making any mistakes.
The case fans create the most noise. When they are all on "low" I an hardly hear them and have to shake the mouse to see if it's on, but on medium it sounds like a "standard" computer. Not terrible, but not quite. On high they are down-right loud.

A few questions about VoiceOver and Safari

1. Let's say I'm reading, item by item, a website that's basically a long text document. When I have interrupted reading to do something in another application or the menu, can I quickly find the position in the text where I jumped out? It would be enough to be able to jump to the paragraph in question.
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Thanks in advance for helpful answers!

Here are a few suggestions:
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Then, triple-click with the physical mouse or trackpad button. Navigate to last item using VO-Shift-end (or VO-Shift-fn-right arrow on a laptop or wireless keyboard). This is best done in DOM mode, since you do not then risk getting stuck inside a group. Make sure your end target text is not a link, so if it is, navigate to the previous non-link text. Hold down Shift and click with the physical mouse button. You should then have a block of highlighted text. Hit your Start Speaking Text shortcut and listen. To stop it, hit your Stop Speaking shortcut.
Unfortunately you can't restart at the position you stopped at with this method; you simply have to navigate to the point at which you left off, then redo the selection process.
4. Make sure that the checkbox "Press Tab to highlight each item on a webpage" in the Advanced tab of Safari's Preferences is set. If you remember the name of your link ("link 5" in your example), when you return to the page containing it, you can use the Link Chooser menu (VO-U) to find your link again. You can then use Tab to move to the next link on the page. Alternatively, you can simply use Tab all the way; each link will in turn be spoken, and if it has been clicked previously, VO will add "Visited" after the name.
HTH
Archie

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I've tried: getLength(object), but it's a 2d array (int[][]), and It's having none of it. How do i get the length of a particular side?

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Without using the apache POI library, and by sticking to non-pay products,
is it possible to use java or XSLT/XML to turn
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Hello, I have a question regarding the garbage collection in java
When can GC be called upon a class?
Right now, I have a linked list of entities which when an entity is removed, it simply removes the reference of that monster (thus meaning the monster is non-existent as far as the server knows), however, after removing/adding around 25k new entities, the memory usage does not seem to go down
Here is the code to remove the entity
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Naki wrote:
Hello, I have a question regarding the garbage collection in java
When can GC be called upon a class? When that class' classloader is GCed.
I assume you meant on an object though, not on a class. An object is eligible for GC when it cannot be reached through any root reference in any thrad.
The finish code, nulls any classesNo, it doesn't. It sets variables to null, not classes. The notion of "nulling a class" does not exist in Java. Also, that code is most likely unnecessary, though I haven't looked at the rest of you post that closely.

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how to set sound via spdif in vlc ?
how to set default sound output as spdif ? (ESI Juli@)
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Don't know too much, but S/PDIF would be handled by ALSA not VLC...
Check out asound.conf for default output...
Check autostart for DE/WM...
Might look into using JACK instead of ALSA...

Few question about Java and MySQL connection

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