I would be grateful if someone could send me source code of
a program that would write elements of 2D array from a text file (or .jar)
so I could process that array inside the program.
array such as: array = {{1, 2, 3, 4, 5},

How do you set a frame to be modal?

I'm new to java and could use some help with a program that reads a string
and counts the Upper Case letters. I tried isUpperCase but it was only doing
a character not the whole string. Do I need some sort of next command or can
I change the string to something else? any help would ...

I'm working on an very simple calculator. It has to simple math. I'm
trying to read an string from the command line and then divide it into
numbers and an operator. With the split method of String I can get the
numbers, but how do I get to know what operator is in the string. ...

I've managed on a previous occasion to take a bunch of class files that were
not part of a package (OK, part of the default package for the pedantic
people out there), bundle them into a JAR file with a manifest naming the
main class, and voila - I can activate the .JAR file and the ...

my program works like this,
public class ClassB {
   public static void main(String[] args)throws Exception {
       while (true){

I have a program(like the following codes) which needs to sleep for 20
seconds. How can i make it stop sleeping if i want it to be alive
before 20 seconds is up?(e.g. when a cancel button is clicked).
Any help will be appreciated !!

I'm a bit puzzled by this exam question (java programmer certification)
which has nested try statements. The correct answer is an output of values 5
and 8. I thought the first try statement which results in throwing an E0
exception would make the program jump directly to "catch ...

I am new to JAVA and just downloaded Java 2 Platform, Standard Edition
(J2SE).  The particular file that was downloaded was J2SE v 1.4.2_02
[SDK] for the Windows 2000 platform.
http://java.sun.com/j2se/1.4.2/download.html

does anyone know how i could round something like 0.3333333
to 0.335, somehow stating that i want 3 fraction digits and that
it should round to 0.335 and not 0.330, or 0.34 ?
thanks

Can someone please tell me if the error below is caused by a missing
"class" file and if so, which "class" file is missing?  This is a
Tomcat 4.0.6 installation on IIS 5.0 / Windows 2000 Server.  The call
is to http://myserver/servlet/Profile which results in an "Apache

Howdy --
I'm fairly new to Java, so I'm easily stumped.  The question is: How do
I access a file within a JAR archive from a Java program?
I have a simple test program, shown below, which illustrates the problem:

I am learning Threads. One of the options to create a Thread in to use
the Runnable interface. The Runnable interface looks:
public interface Runnable {
   public abstract void run();

I have a multi-threaded java system (too many classes to post on this
site), and its stragely throwing an "UnsupportedOperationException".
A quick summary of what I'm doing
Class1

hi to all, can you help me with the realization of a simple app, without
business layer, only struts...for a simple polls app?
i will pay! its very very important, i need it quickly!
i have posted many times, and i have tried to learn quickly...but not