Apache Tomcat  6.0.18 came out yesterday.  I could not find the
release notes to see what they changed that would have any impact on
writing Java code.

Hello you all.
I am in a hobby project and would need a easy-to-use Java class or
component I can use more or less out of the box in my project for
simple text recognition. I want to compare one or more pieces of text

Is the compile date of a class embedded in the class file somewhere? I
could see not putting it in to avoid false deltas when the code did
not really change.
It there a method to find out when a class was most recently compiled?

I'm using the backport to java 1.4 of Doug Lea's java.util.concurrent
package. In the doc for ThreadPoolExecutor, there is a snipped of code
to build a pausable thread pool executor. The snipped is below.
Q: Why does the boolean flag isPaused need not be volatile?

I'm trying to import the public key of a secure site (https). But, I'm
having a lot of difficulty getting this to work. The JRE is on a Unix
box (SunOS 5.10). From my Windows XP workstation, I went to the site
with IE and retrieved the public key in DER Binary Format and saved it

when we use import statement such as:
import java.util.*
or any such, we are referring to the java/util/*.class classes. but
where is this package located in my jdk directory. Also i dont need

How to get thread dump of java in windows XP? I don't have access to
console because process started from AT command.
I tried jconsole, but I see
java.lang.MemryPool.Threading.dumpAllThreads operation but it will not

This is slightly annoying. Switching tasks away from Netbeans and back
seems to focus the menu bar most of the time, so if you, say, type some
code, then alt-tab to the browser displaying some javadoc, then alt-tab
back and type, it pulls down menus and generally goes nuts.

the following code
       System.err.println(new Line2D.Double(0,0,20,20).getBounds2D());
       System.err.println(new Area(new Line2D.Double(0,0,20,20)).getBounds2D());
produces the following output :

How can I delete rows from SortableTableModel?

I'm experiencing some performance issues when processing ResultSet's
containing large amounts of data. The data is typically around 2,000
rows and although the database query only takes 0.9 seconds,
processing the results takes almost 30 seconds. All i'm doing is

Sorry to get back with my question... But nothing's
clear in these answers I got. The 1rst line of R. Green's
page states that "writing Java objects to disk in a way that
they can be read back in again later".

The last few days I have been decustomising three of my projects.
Html static macros, a Xenu back end broken link checker, and a tool
for manipulating HTML tables.
Each started out an in-house one-day project and grew and grew, then

I guess I'm probably pushing it here, but I've been charged with
web-enabling a third-party quote generation engine. The quote-generation
engine (it generates life insurance quotes) is a self contained windows app
with no obvious way of pushing data into it.

Suppose I have an abstract class GeometricObject
whose methods getArea and getPerimeter are
abstract.  Then two classes of a specific
GeometricObject, say, Circle and Square