Is there anyway, that given a java .class file, I can find out what
version of Java was used to compile it?
Regards
Roger

Shouldn't the code below finish with an IllegalStateException, after the
finally is executed? That's how I read Section 14.20.2 of the 3rd
edition of the language spec. But with jdk1.5.0_06 on Windows XP, I'm
getting the output "returned with no exception."

I wrote thise helloworld code in java as Hello.java
----------------------------
public class Hello {
   public static void main(String[] args) {

i have created a form , in which names of persons are shown in a tree.
now there's a other applet which adds new friends to the database. now
i have to display these names also in the tree during runtime.
the problem is how i do it ? can refreshing the main form help ???

I've read up on Vectors and LinkedLists.  Other than slightly different
interfaces, I'm not clear on reasons for using one over the other.  Both
can keep growing and can have members inserted or removed as needed.
Is there a reason to use one over the other?

How to track traffic on oursite.can anybody tell me about tracking the
traffic on the site and no of user visiting the
which pages or parts of the site and from their location

 i am having few methods they all throw few common exceptions
 method1 throws a,b,c
 method 2 throws a,b,c
method3 throws a,b .......

Does anyone know any resource about how to make a good software design
document?

Hi frds, i want to know how we can create the jar file in java.because
when i creating the jar by
c:/java>jar cf Mynewfile.jar
it just makes the jarfile but when i want to excute it .it gives an

Say I have ArrayList<String>. Is there a function that will count duplicate
occurences of a specific item? I can do it with just a few lines of code,
but is there already something that will do that?

i have 3 appender and one logger defined in the xml file.
<appender name="EMAIL" ...
<appender name="FILE" ...
<appender name="CONSOLE" ...

How do i kill the process if it doesnt finish in for e.g. one min?
Process proc = Runtime.getRuntime().exec(cmd);

I am a second year computer science and engineering student in India.I
have just started to learn java programming language.I have purchased
the book "Objects First With Java - A Practical Introduction Using
BlueJ " by David J Barnes and Michael Kölling as the introductory text

This is somewhat off topic, but I think many programmers would be
interested to look at a working model of a microcoded computer at:
        tomspages.com
click on the link for 'Hack the Com puter Model.' It conveys among other

Of Interest:
Introduction to 3D Graphics Programing
http://xahlee.org/3d/index.html
Currently, this introduction introduces you to the graphics format of