I recently reformatted my HDD, and subsequently reinstalled NetBeans IDE.
Now, none of my Java apps will function properly, because the system returns
the null value for all instances of System.in.  For example, the following
method simply prints on the screen, "null".  Does ...

I am trying to make a web crawler which will be topic focused. For
this, I have to make some calculations on the contents of url before
adding that url into my database.
I had found a very useful program of Word Count from sun java forum,

I guess this is more javish than linuxish question... I'm looking for
(preferably JNI) bindings to linux' IPTABLES. I need to
create/review/update/delete firewall rules from Java.
One thing I can do now is to call 'iptables' command and parse

how do I convert a byte[] which contains a private RSA key to an
instance of java.security.PrivateKey?
The byte[] was obtained with PrivateKey.getEncoded(), and I would expect
a complementary API function to convert the byte[] back to a PrivateKey,

Dear friends,
I tried to call c++ codes from Java, so I used JNI:
Following the instruction of java JNI official website, I succeeded in
calling HelloWorld.cpp from Java.

 Can you use Hibernate with an existing database? Or does Hibernate
create all the tables it needs to, and you are not supposed to mess with
the db yourself?

I'm getting a timeout error when calling the java web service server
with my client.  It only happens when i have files over 80k.
I tried to put this in the config wsdd file, but it didn't work.
This is my error: (calling with a .net client

Was wondering when using something like this
theClass= (myClass)Class.forName(className).newInstance();
it calls the classes (className in this case) default constructor with
no arguments right?  How do you send values/arguments to it? Or can't

does any one know if the version 3.0 (build: ) of Eclipse has a memory
leak?  On large projects, the editor is slow to begin with, but when it
starts, i see that the jvm hogs about 60MB.  after about 1 hour, that
reaches near 100MB.  at that point, the editor just pretty much comes

I have been reorganising my entire code base so that dependencies
don't force me to use Java 1.5 when I don't really need it.
I have discovered something that surprised me.
If I delete all the class files in the universe, and compile one class

Hello all. Sorry for the cross-post. I posted in the "Java Programming
Language" group thinking I was in this group,
"comp.lang.java.programmer" ...
I have seen gazillions of messages about this subject, and have

 new "to this stuff", planning to use java shortly.
For GUI development is Eclipse, or Jbuilder best suited?
Will Eclipse support something like Delphi, QT architecht, or Kdevelop?
Thanks for your comments, advises.

Any suggestion for a simple yet complex Java application for a job
seeking portfolio??

New to Java.  What is the difference between an SDK and a JDK?  I see that
there is SDK 1.4 and JDK 5.0.  Should I use one over the other?
What is the difference between Java Studio Creator and Net Beans?  Any
recommendations?

I am trying to find a way to convert a two-digit hexi-decimal
String representation of an ASCII character into its ASCII character value.
For example, the ASCII hex String "4A415641" would convert to the
String "JAVA".