I'm running java version "1.6.0_03"
Java(TM) SE Runtime Environment (build 1.6.0_03-b05) under NetBeans
IDE 6.0 (Build 200711261600), which I believe is the latest version.
I get the following error after my programs complete (my programs

I've got some code below, in its early stages - my ultimate goal is to
be able to render pixel graphics to the screen, but I don't want to
render an entire image and then display it. I'd prefer to have it
shown as it draws, so that I can see the activity (for the time

I'm trying to obtain an integer from the beginning of a string.  The
integer is of arbitrary length, followed by a delimiter, followed by
the rest of a string (which I need to preserve to do further parsing
on.  ie, if ; is the delimiter, then the string might look like:

I'm wondering why sun.misc.Unsafe class allow us getting address of an
object. I'm assuming that address will be changed by GC so it's really
UNSAFE to use that address in any situation.
Is there any useful usage of this object address from using UnSafe

package XX;
class A
{
  protected void kk ();

I have created a program to build a dictionary file. This program uses a
  simple socket connection to a news server and stores each word in a
article found in every group. These words are stored in a hash table to
help make the insert time of each word as small as possible. The ...

public class Test {
     public void disp(Object o) {
       System.out.println("Object Vesion");
     }

I'm trying to redraw an image after I resize the window, but the image
disappears everytime I resize. How do I scale the image to the size of
the window? Or, another way you can look at it is: I click points onto
a screen and when I resize the window, I want the points not to be

I am new to JDBC. Can you help me on how can I know that I have the
driver I need to connect to some kind of database... say MS Access or
SQL Server or Firebird or Paradox?
And how to connect to the database?

I need to implement login security for a database system and would
appreciate some suggestions.
The database will be hosted on a Linux system, but the graphical query
and maintenance applications may be run anywhere - Linux, OS-X or

I want to display a String that contains the calendarweek and the
year. So I used the following format:
SimpleDateFormat weekFormat = new SimpleDateFormat("'KW' ww '/'
yyyy");

i was trying to learn face recognition using eigenfaces .i came across
a face recog engine written by konrad at www.darnok.com. I came
across  the part about euclidean distance calculation in this..can
someone explain the mechanism/maths in it

The typical tutorial on Java encryption such as
<http://java.sun.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.ht
ml#SimpleEncrEx>
shows you how to generate a SecretKey and use it immediately to
encrypt and decrypt some text. I have not found any guidance on where

I have been thinking about the best way to notify the user of errors
while keying.
1. verbal, the user can fix the error while the voice continues.  Java
does not have a decent sound API that works outside Applets, is

We are writing an MDA tool - witchcraft to generate complete
enterprise application code with crud, search, security,web page flow,
handheld access, web services etc from a UML 1.4 / 2 model.
Development is all new and very intriguing as we have just started