During the build of my java prj using ant, there are also some
warnings. I wish ant could be able to ignore these warnings. Right now,
for these code that has warning, these will be recompiled when I do
another build.

i need a disperate help,because i'm crazing with this problem.
I'm developing a jsf application with tomcat server and i have to
develop interactions beetwen the application and a mysql db.
I've done it with jdbc 1.0, now i've to use jdbc 2.'0 and datasource,so

I have googled and learned that there are limitations with JApplet
writing to files on remote host. However, I am unsure as to whether it
is possible to do so on the same computer.  Please advice. Thank you.

I have a column type char in a sybase database. what do I need to do in
the preparedStatement to set a string type to char?
Thanks in advance

   I'm trying to set up a solution to use a flat file as a database
and be able to run basic SQL queries on it in a Tomcat environment.
I'm thinking about getting JDBC set up and supposedly it has a built-in
driver to use flat files as the database.  Only problem is i have no

Anybody know, is still exists problem with date using in EJB 3.0?
I'm talking about using date parameter in EJB-QL, for example.

I have been trying to write a stand-alone software for logging into
orkut. I am now trying using the URLConnection. y programme right now
is simple, it justs opens a URLConnection to the address from url and
displays the content to the terminal. I am running the program from

does anyone know where i may be able to find a good reference book on
all of the classes for Java 2?
i know they are on sun.java but i would like to find a physical book to
reference from, personally i find it easier to reference from a

import java.util.List;
public class GenericGotchas {
   void foo(Class c) {
       System.out.println(c.getSimpleName()) ;

I am trying to maximize a JFrame, but it does not work.
Any help is greatly appreciated.
I call this:
Toolkit.getDefaultToolkit().isFrameStateSupported(Frame.MAXIMIZED_BOTH)

I'm pretty new to Java, but with loads of C++ experience. Today I
started working on a new ap just for fun and I was trying to decide
whether to use C++ or Java.
After some fiddling around with both I came to an intersting

I am discovering that File.delete() does not work the way I expect. I
am not sure if what I observe is expected behavior or if not where to
look for a problem.In my code I have a method to delete contained empty
directories in tempDir. It looks pretty much like this:

               I made an example which works fine in the JAVA main
Thread, but crash in a new Thread, Why?
Is it possible to do something like that?
if no, how?

Is it possible to achieve something like this?
switch (mystring.charAt(0)) {
case 'a'..'z':
// do something

 I'm using a canvas to draw a simple polygon that is slightly
transparent using a double buffer.   I'm also clipping the area around
the polygon.   Below is some code that I'm using.  For the most part
everything works fine, until paint is called through something like an