If I put a Jar file in jre/lib/ext, should all of its dependent jar
files must be in jre/lib/ext only?
Or I can put a jar file in jre/lib/ext and its dependent jar files in
classpath??

Consider the following code:
Vector<String> s=new Vector<String>(10);
Vector o=s;
o.add(new Object());

            I have a rather silly question to ask so please bear with
me.
What is JDIC??
Is it part of J2SE??

I've been trying to get my mind around a certain setup, and am sure I'm
missing something.  I was hoping someone could shed some light on it.
Say you had a simple library type application, and you set it up so
that all books would be children of a Book superclass:

Consider the declaration from Java API:
public abstract class Toolkit extends Object
This abstract class java.awt.Toolkit contains one abstract method beep.
public abstract void beep()

I've written a message bean that monitors a JMS queue and successfully runs.
I made changes to the onMessage method to include a new piece of code which
due to another error threw an exception. When I wasn't catching this
exception the onMessage method didn't complete and so the ...

I have a problem with a program I am designing. Basically at some point
it will be passed a random logic query, for example...
"(A=B and C=D) OR (E=F)"
...the brackets and 'AND' and 'OR' statements may be in any order and

Can runtime parameters exist inside JAR Files? I would like to include
runtime heap (e.g., -Xmx512) parameters inside my JAR file.

I'm familiar enough with Java that I can create a <JPanel> object and
build listeners that execute when the user clicks a mouse in it, or
drags a mouse across it, or moves a mouse off of it.  My question now
is how do I write listeners that execute when the user resizes the

Hi all ! :) I've problem and cause I'm new to java I need Yours help. I
write program which task is to parse xml files. I did it but i have another
problem: user indicates directory and program task is to get content of
this directory with subdirectories and list only xml files. ...

I am having a problem presenting some HTML that is the result of an XSL
transformation, due to the placement of some mysterious CR/LF
characters peppered in the HTML.  These chars tend to appear in the
middle of HTML tags, like this table cell tag: <tCRLFd>, and it really

I've been trying to delete a row from my JTable without complete
success. My problem is that while the row is removed from both the
model and the view, the view is showing the wrong value - the value
from the deleted row. Here are the steps to reproduce my issue:

I have a signed applet that needs the Java Plug-in to grant it full
permission to use system resources (files, sockets). I know that I can
do this by adding certificate info to the policy file, but I don't want
my users to have to modify their policy files. In short, how can my

Is it possible to do a nested enum?
For example,
private enum inside0{a,b,c}
private enum inside1{d,e,f}

hi any one know which tech..tool i have to use to create a web
application that can run on almost all [Palm Pocket/WinCE BlackBerry
Symbian Linux] mobile handheld device. WML is there but for complex app
which tool[like ASP.Net Mobile Controls]