I am new to Java, learning GUI. I am trying to create a TabbedPane
with 10 tabs, by using array of JPanel. However, JPanel arrays are
always null. I do not understand why they are null when they are
arrays but not otherwise. I would appreciate explanation and help on

I've written some code and it is running much slower than I would like it
to.  I'm from the C school of optimization which says that you write the
code the best way you can and then when you get done you run it through a
profiler to get the optimization done.  This has always served ...

I wrote this test to show what's happening:
public class TestClass {
    public static void main(String args[]) {
        testMySQLService();

Does anyone know how to run an external program (i.e. a windows exe) from a
Java application (if this is possible) I'm writting a program that edits a
file for another program to use.

I have developed a program with Netbeans for Linux. It accesses a MySQL
database. This is done via the com.mysql.jdbc Driver jar file. It works
fine when I run the program on its own, but when I try to do it through
Java web start, I get a NoClassdefFoundError. Do you know why this ...

Can a class import another class from the same package?
    See below for example.     Thanks, Alan
oneClass.java:
package jat.util;

firstly About Bluewisher .. my project
1. Database:
                a.Centralized( made in IBM DB 2, kept on server)
                b.Embedded(Images, Flash templates... all in

Hello. I have an application that creates a bufferedimage, but most of
the times it's to big to print all on one page. What I want to do is
scale it to fit on one page. If anyone could show me some example code
on how to do this it would be appreciated. (I have the basic

Thanks in advance for your responses.
I am relatively new to OOP and though I have muscled my way through
Java, I am still trying to correctly understand the concepts of OO and
how then are modeled into Java.

I understand that in UNO (and COM, and CORBA...) the programmer can
"inspect" or "interrogate" the components in order to find ways to
communicate ("send messages") to them.
The OpenOffice process can be run in either (a) named-pipe mode, or

I want to use /3GB switch on Windows 32, so tomcat can access up to
3GB memory (instead of 2GB memory). I had created a thread in the past
and got useful information, but I now I want to use this feature in my
work and have some more questions.

Excellent opportunity for programmers:
ValueFirst (www.vfirst.com), a leader in mobile
data services and creator of unique Enterprise
Mobile Application is looking for "brilliant"

One of the fundamental problems with Java is that you double click on
an executable jar... and nothing happens. Or perhaps the program does
start but then it stops working, when you click on a button or menu.
Compare with an *.exe file. You double click on it, and it works.

According to the JLS clone is a public method for all array types:
6.4.5 Members of an Array Type
...
The public method clone, which overrides the method of the same name

I am trying to export a project in jar format so that I can run it on
different machines. . I got a NoClassDefFoundError exception because
it requires referenced libraries (in this case, it is the MINA). Would
anyone please tell me how to export with referenced libraries?