i want the coding for bar chart&pie chart in jsp.
please help me yar.

I want to use a TableModelListener for reacting on changes made on my
table.
I created my own tablemodel with mytm extends DefaultTableModel.
However if I add a TableModelListener it doesn't get called on

Okay, so I have a text file with a 650 byte record length.
It has a bunch of fields: Name, address, amount, tran-id, etc.
I want to read the record into a record layout to map the fields
as I do in other languages. This is like basic functionality.

I want to know, what is the associated IP address to access
"localHost" using Mac OS 9.2.2 as it is in Windows XP?
When I use "127.0.0.1" in Windows  in the below program, the
result is the word "localhost".

Googling I see this is an old issue, and I'm not finding a work around.
I have a modal dialog that creates a jFrame so I can display an image,
but I'm not able to get focus to the frame. The frame is focusable but
methods such as requestFocus() don't help.

I'm trying to get to grips with how references and comparisons work in
java.
From what I have read, for objects, == will return true only if the
references are the same, not necessarily the contents of the object.

I was told by many people that a Java or C++ certificate does not
prove anything.
Perhaps it is true that experience is much more import than a piece of
paper - certificate.

To get a Random enum you need something along those lines.
<code>
public Days randomDay() {
 Days[] days = Days.values();

(Or more likely my understanding is flawed)
In the below code I have a test function, that returns a string and
always triggers a null pointer exception.
The test function handles internally sqlexceptions and finally returns

I am in the process of working through an app to help me learn Java. I
am trying to write a portion of code which will do the following:
Start a 10 second countdown
If the user makes a selection, the timer stops

I would like to check in a Java program if a certain directory exists.
The following does NOT work:
String fn = new String("C:\foobarnotexisting");
File root = new File(fn);

I'm stuck on the first part of a class assignment using a GUI with
specific attributes. The only programming I've had was basic years
ago, having a massive senior moment.

I need to get the HTML content of a URL like this :
http://www.aa.com/bb
My code works fine if at the end I have a filename :   http://www.aa.com/bb/cc.txt
But I got an Exception if I try to open :   http://www.aa.com/bb

Could anyone explain what the feature of invoke, why do we need
invoke?
Thanks in advance.