I learn myself to understand Java and make as exercise in Netbeans 4.0 a
popup program. A start with Frame and add the popupMenu with items. With the
MousePressed I call "poupMenu.show(this, x,y)" and hope to see the popup
menu. But that doesn't happen. The frame window is on the ...

Please help me, I have tried a lot.
Class.forName("com.mysql.jdbc.Driver");
dbUrl = "jdbc:mysql://localhost/databasename"
conn = DriverManager.getConnection(dbUrl, dbUsername, dbPasswd);

Looking for a function that returns the timezone for any given point.
I want to feed it with longitude and latitude.
any ideas?
--

Recently I have 2 Java projects that I need to work on.  As a Delphi
and Visual Studio .NET programmer myself, I don't have any background
with Java.  I don't even know what will be the right tools to finish my
projects!

In a three-dimensional structure, there are million points, how to
design an algorithm to find out nearest 100 points towards the origin.
Given an array of characters which form a sentence of words, give an
efficient algorithm to reverse the order of the words (not characters) in

could you please tell me how i can get my program to output code on
Notepad so that i can compile it later?
I want the user to input data (such as what color background they want for
their JFrame)which can be then saved in notepad as java code...

I'd like to open a new web page from applet: how can I do?
and how can i pass an array of values to the applet?
Thank you in advance,
Mario.

I'm a little lost with interfaces and reading previous posts has made
things worse.
I think I get the idea, but yet I found some examples that confuse me.
If found some code (actually for javacard) that does the folowing:

I've been coding Java for a while but I'm trying to improve my coding so I'd
like to fill in a few gaps in my understanding. Today, I want to focus on
try/catch/finally and error handling in general.
First, can I confirm something with you?

I'm very new to this, so I'm hoping you will have patience with me :)
I have a method which is creating a JDBC connection and returns it. I am
wrapping the connection code in a try and have a catch statement. The
method is declared as

how would i rearrange a list of integers in an array into ascending
order?for example if i have an array- int[] nos={2,6,3,5}; i want to sort
it in ascending order so that it returns {2,3,5,6}
thanks!:)

Problem: Date.getTime() gives different result than KeyEvent.getWhen():
now.getTime() = 1109704763572
e.getWhen() = 179320634
The getTime() looks plausible for time since Jan 1 1970. Any idea what

A few days ago I posted describing variation in execution time
when using the 1.4.1 server vm, but not for the client vm.
Since then I found others had reported similar observations to
the Java folks, and the signal 11 error that I've also seen.

I have to calculate the date in MM-DD-YYYY format for a date that is
exactly six months ago from the current date. What is an efficient way
of doing this?
So if my function receives a parameter 01-12-2005, it should return

Here is a big list of numbers from 1 to 1000, but one is missing -- how will
you efficiently find the one that is missing?