Can you let me know the difference between Abstract class and
interface. I did research on the topic and found it helpful. Well, the
refined question I have is
1. Is there any difference between abstract class for which all the

I am trying to parse some data which is edited with a rich text editor
(FCKeditor)
When I se scandinavian characters, they are converted to html encoded
version by the FCK editor

I have a web app which needs to log request's info, including its'
timestamp/timezone.
Can anyone have idea (what can be used from 3rd-party-lib, is only
common one, like apache)?

I need to display a google map in a mobile app for college.
Any ideas welcome
cheers
Aidan

Hai!
Can anybody pleaseeeeeeeeee.... tell me how to add a tree with drives,
to the JComboBox as in windows Explorer?

I want to make native code wrapper for java.
Then I found JNI, but I need more sample code.
For example, I want JNI to do following things.
1. C++ code makes file pointer.(use fopen())

what is the difference between toString() and type casting a n Object
to String

hi there well i am woundering if there is a simple solution in java for
my problem
i need to read first few bytes from a text file and then delete those
few bytes i read from the file.

I am making website using java http servlets, and I would like to
customise the error message that users see when they try to access a
file that no longer exists.
This is the error message that is currently displayed:

I have a generic class ClassX defined with a parameterized type T of
subclass ClassY.  Within a ClassX method, I want to allocate a new
object of type T.  When I try using:
ClassY foo = new T();

Hi a All,
I use these line to get a url.
url = new URL(Url);
BufferedReader in = new BufferedReader(new

Hey all
Does anyone know how I can set a webapp's path to / instead of using
/webappname ?
I am running a webapp which before was Resin based so all the URL's are

Say I have the following two objects:
public class ObjectA {
 public void load() { }
}

I have a program (only 100 lines or less) that polls a web-service and
gives me the current status of the service. I want to run this program
on an infinite loop using Thread.sleep() to sleep for 5 mins. after
polling and have some way of starting and stopping it.

I have an external program I need to execute which takes an argument.
So I have the code:
String command = "...";
String argument = "...";