|
How to connect to multiple databases (like SQL server, mysql, oracle) through Java code.
|
|
|
|
|
Nirmala G wrote: SQL server
JDBC will do it.
Nirmala G wrote: mysql
Look at JDBC Driver for MySQL
Nirmala G wrote: oracle
Again JDBC can be used here.
What do you mean by connecting multiple databases? Do you mean a method where you can change the underlying database with minimum code change? If yes, abstract the database calls behind well defined interfaces. So you can change the code without affecting interface users.
|
|
|
|
|
If you choose to use jdbc you'll have to download drivers for each specific database. I just wrote a post on how to dynamically load the database driver jar you need and connect to jdbc through it here[^].
|
|
|
|
|
I have about 250 tokens in my JavaCC grammar file. The JavaCC compiles fine, but the Java code compiles with the following errors. Any suggestions beside reducing my token count?
MyParser_USA1TokenManager.java:9903: code too large for try statement
catch(java.io.IOException e) { return curPos; }
^
MyParser_USA1TokenManager.java:1309: code too large
private int jjMoveNfa_0(int startState, int curPos)
|
|
|
|
|
Hi, any suggestions are most welcomed, but I would rather not edit the JavaCC generated Java code. I am looking for a solution such as JavaCC options or perhaps this is a limitiation with the JavaCC that I have to work around such as breaking my JJ files into many?
Best Regards,
Allan
|
|
|
|
|
how to translate one languages to other languages in java
also tell me how to do internationalization in java
dhivya
|
|
|
|
|
dhivyasivalingam wrote: one languages to other languages in java
What do you mean by this? Something like google transliterate?
|
|
|
|
|
yes,what is the concept behind it
|
|
|
|
|
Hi,
In servelet, how can i read an xml file
|
|
|
|
|
Look inside javax.xml.parsers. You need to use DocumentBuilder and the factory class which creates DocumentBuilder. There will be enough examples if you search for it.
|
|
|
|
|
Hello everyone. My name is Sachin. I'm doing an Image Processing project & for that I've to convert a colored image into a grayscale image. I wanted to know how can we get a pixel from an image using Java so that I can perform further operations on it. There is no such function like "getPixel()" or anything related to getting a pixel from an image. So please help me out. Can anyone give me the code to convert a colored image to grayscale image? I'll be waiting for your replies.
Thanks in Advance.
Regards,
Sachin Hundekar
|
|
|
|
|
Seriously? It's the second listing on a search for "java get pixel from image".
Processing Image Pixels using Java, Getting Started[^]
Next time, try using a search engine.
"we must lose precision to make significant statements about complex systems."
-deKorvin on uncertainty
|
|
|
|
|
Hello everyone. My name is Sachin. I wanted to know how to insert large numerical values such as mobile numbers into the database (MS Access) using java. I've tried using Integer & LongInteger in MS Access and setInteger in Java, but I'm getting Number Format Exceptions. So I'm looking forward for your suggestions.
Thanks in Advance.
Regards,
Sachin Hundekar
|
|
|
|
|
phone numbers are always text - just because there could be other chars in it like / or - .
So don't try to convert them.
|
|
|
|
|
I want to know if its possible to backup and restore SQL Server, 2000, SQL Server 2005, Oracle 9i,10g.. and MySQL using some java code.
That means if I execute a function in Java, it should backup the mentioned database..
Some one help me..
|
|
|
|
|
Hello,
This is Reuben. I have to develop a "packet filter" for my final year
B.E. project. If anyone can give me the source code to block an ip packet, it would be of much use.
|
|
|
|
|
See here [^].
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
|
|
|
|
|
i think you are makeing firewall in java.
in java there is no api to discard network packet you should make firewall in vc and pack in dll then call it from java by using JNI
search on firewall hook driver (implement in vc)
|
|
|
|
|
How I make chat server in J2EE means that run on Sun Java System Application Server......
|
|
|
|
|
See here [^].
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
|
|
|
|
|
Hi buddies
if u know the code for this project plz send i need urgently
Asynchronous message oriented middleware implementation using JMS
thank you
baskaran k
|
|
|
|
|
See here [^].
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
|
|
|
|
|
For my Java class, I have to implement a computer version of the game of Simon (with the color panel sequence). In the program, I have a subclass of JButton, SimonButton. I want SimonButton to display a dimmed color. The SimonButtons are in a JPanel, which is in a JFrame. I do this by giving it a low alpha as such:
public void setColor(Color color) {
this.setBackground(new Color(color.getRed(),
color.getGreen(),
color.getBlue(),
alpha));
}
with alpha = 20.
The program starts off working well, but every time I move the mouse over a button, the color becomes brighter. I'm assuming that the SimonButtons are just being drawn over each other, thus making the colors cumulative. How do I make it so that the buttons get completely redrawn instead of drawing over top of them?
|
|
|
|
|
please send error detection for cyclic redundency check using java program?
|
|
|
|
|
I just detected a lot of errors in your question, for the corrections see [^].
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
