I have a one line program
System.loadLibrary("net");
When I run it I get a segfault. It also segfaults if I load library
"j2gss" but all other libraries in jre/lib load fine.

My program is:
//program to find the roots of a quadratic eqaution
import java.io.*;
public class quadratic_roots

i created a new java project in eclipse from existed source code. after
creating it in eclipse i get thousands of errors saying that "xxx
cannot be resolved". what could be the reason for these kind of errors?
please help me asap

I'm successfully using jfreechart to create an XY line graph (
ChartFactory.createXYLineChart) where the x-axis is int values
(distance in km), and the y-axis is also an int values (seconds / km).
I'd like to display the y-axis in a "time" format, so a value of say

I have a strange problem... I have > 1000 threads wanting to send data
through synchronized DataOutputStream wrapped around a sockets
OutputStream. Replies sent across the internet are received perfectly
in the sent order but across the router the stream is somehow

i'm wriritng a smal programm and i whant to return array of string to
class here is an example i whant to do...
public class CreateArray{
public static String[] create_str_array(){

I need to control an interpreter (4bol, implements some assembler like
language) from a java program. The 4bol interpreter sends it's results
to standard output, parsing errors to standard error. The problem is
that the java source at the end of this posting hangs with a

I am about to throw in the towel on Java at this point!  Too many
questions!
How in the world do you do this one (again, in my native PHP it's
extremely easy:

I'm a newbe to Java / JSP and I'm looking into the language. Currently
I'm trying to work with MySQL databases. I have succesfully worked out
this simple code to make sure that a MySQL database connection was
possible with JSP:

I'm rather inexperienced in Java but I'm in need of defining a
JTable(N,N) with non-editable underdiagonal elements. I do not know if
it's better to do it by using TableModel or directly JTable, but I used
the latter because it looked easier to me.

I think this is a bit tougher then the last one I posted (which was quite
simple). I think I'm missing something fundamental. This code runs, but when
I run it and it prints out the contents of the list it shows that all items
in the list have the same value as the last item I ...

Can some kind soul look at the following code and tell me why I get a
NullPointerException at the last line of code? This looks to me like it
should work. Can I not have an ArrayList as a member of class WordPair?
import java.util.*;

I need to do something when the mouse moves over items in a list --
not click on them, just move over them. The problem is, I do not see
how to  determine the cell that the mouse is over when the mouseevent
is fired.

Strange in a method I am parsing a text file with this code :
do {
 LineStringValue=entree.readLine();
 if (LineStringValue != null) {

Hi all, I have a JPanel inside a JScrollPane inside a JFrame. When the
content of the JPane changes, its size is updated accordingly, so I would
expect that a validate, revalidate or repaint call to the JScrollPane would
make the scrollpane modify its scrollbar to suit the new ...