I'm a java newbie and i've got a little question.
how do i show java heap space on console?
SLES 9
Java 1.4.2

I am considering learning Java or .NET programming, but would like to
know what may be any significant advantages or disadvantages of each.
For instance, I would like to develop online applications to function
like desktop applications, especially a word processor.  I know PHP,

I don't see why I'm getting "cannot find symbol" because this JList
uses a DefaultListModel, for the time being, which certainly has the
missing method:
init:

I'm currently using the following code to load a array class for a given class name:
Class<?> clazz = Class.forName(className);
clazz = Array.newInstance(clazz, 0).getClass();
I don't like instantiating the array, so my question is: Is there a better way

Got an X.509 certificate from Thawte.
Manipulated it as described here:
http://www.dallaway.com/acad/webstart/, so that now the CA reply is in
my "keystore.ks".

The  interface Serializable does not have any methods or variables.
If I create a subclass of an Object class - is this class
Serializable?
For example, let say I define:

Here are some questions for newbies on the throws clause you apply to
a method. The quiz consists of 9 true-false questions. This is
open-book. You can read the JLS or perform compiler experiments.
Post your answers if you are feeling brave.

If I'm adding a library such as JDOM, where does it go?
"Wrapping the Libraries
You could bundle the entire Feed Reader application into a single module.
However, the application needs the Rome, Rome Fetcher, and JDom libraries:

just a quick question, would it be ill-advised to, to a certain extent,
normalise an object model? E.g. say I am crawling many websites and
retrieve documents and urls to keep in a memory cache. So I create an
url object for each url. When parsed, many of the urls would have same ...

I'm probably going to kick myself, but here's what's happening.
The referenced jar has the AsyncTimeoutException class.
jim@blackie:~/panel$ jar tf /opt/jdk1.5.0_15/jre/lib/ibmaio.jar | grep
AsyncTimeout

Here* is some example code that helps check if a
'single file' SSCCE is actually what it claims to be!
* See: Example code for java compiler (with a simple GUI)
<http://forum.java.sun.com/thread.jspa?threadID=5305018>

I am working on a simple method that will assign a specific extension
(e.g. ".jsp", ".php", ".cfm", etc.) to the end of a URL if it doesn't
find anything marking a valid extension, however, I do not want to add
an extension if one is found.

"For example, if the department of motor vehicles supplies a list of
drivers to the census
bureau, this seems reasonable. We think that a List<Driver> is a
List<Person>,

I must be doing something wrong, jtextfiledFIleNbr.requestFocus() does not
work
when executed from focus lost event.
How can I cancel focus change? or how can I validate without using focus

I was reading a bit about Strings intern() and have a question.
Comparing the following two examples, what is the difference in
practical terms?
    str2 = str1.intern();