I have a collection of "Invoice" objects within a vector.  I need to provide
a "logical key" to each "Invoice" object, which consists of a vendor number
and an invoice number, which are both Strings.  I need place a logical key
within each "Invoice" object, so that I can retreive ...

Can anybody do this for me? or at least tell me how to do it?
Thanks in advance
Jen x

Why does this
 for (double x = 0.80; x < 1.0; x += 0.01)
 {
  System.out.println("Threshold " + x);

I have the j2sdk1.4.2 and I have a mysql server setup and I wanted
to write a program to connect to the mysql server and grab some
information.  I downloaded the jdbc drivers from the mysql site, and I
set my classpath and put both the org and com folders and their

I want to delete a char from string. i used the following function.
String f = formulla.replace('[','');
The above function doesnt work as it tells me to put a space or some
char in 2nd parameter which i dont want. i just want to delete all

hi, I just began with studying java and have a question about reading
bytes from file(fileA).Every time I make it read into a byte array with
size 256.I used a while loop to see whether the next byte is a -1,if it
is then stop .

i have got a problem with JTable. I created a small panel which includes
a JTable (in a JScrollPane) with a DefaultTableModel as model and 3
Buttons to add and remove rows and to clear the whole table. The problem
is after deleting a row, and clicking on the row which is now the ...

I'm confused about Closed Hash Tables (i.e. where each bucket is
occupied by up to one entry).  I've read that each bucket in these
tables has three possible states;
never-occupied (if it has never been occupied)

  if one user wants to access our server via a gui(running on the
client side)
and send data(may be a file) to the server.Once server got a data,
server running

Anybody know how to make the background of a JText field transparent so
people only see foreground letters?
Nick Soutter
www.andromedaonline.net

Hey Guys!
I got a JComboBox with a border I need to remove.
I tried:
this.setBorder(BorderFactory.createEmptyBorder());

I would like to set up web folders for users, e.g., every user has 10Mb free
space for storing his data, he could access his folder by his
account/password on the internet.
Any help will appreciated.

I am seeking help in my attempt to configure proper debugging
functionality for my classes with an application on a win32 platform
that uses Java HotSpot(TM) Client VM (JRE 1.3.1_01 - jvm.dll).  For
those of you that may actually know this application, it is Matlab.  For

I am getting an error when I try to set my classpath to utilize the
javamail components.  I am using
set classpath=/jaf-1.0.2/activation.jar;/javamail-1.3.1/mail.jar
This gives me two errors

I'm trying to compile all my java files without the need to compile
separately.
I have basically only two directories to worry about:
o the working directory from where I will run the application