I'm going through Horstmann & Cornell's "Core Java, volume I" (I come
from C++) and have got a little stuck on their first example using
java.lang.Object.setFocusable(boolean). It's the sketch program in
example 8-3, in case you have the book.

I'm writing a RSA encryption program for an assignment in
my networking class. In this program, I have to use BigInteger
class to raise some number to a huge power... After creating
an instance of BigInteger, I want to change its value. How

     Sorry for duplicate post, the previous post has messed up the image of
*s.
     So what is wrong with my code ?
     (C)

I have a PrintStream on which I wish to use one of the write() methods,
probably write(byte[] b). What I want to write is the contents of an
entire file of which I know the name. What is the easiest way of doing
that? I realize that I can just make a byte array and use that as a

Here's a java problem I'm trying to work through.
I wrote a program that solves a game a friend of mine calls the
"Cracker Barrel Game" because he remembers it from restaraunts of
that genre. There are 15 holes in a triangle with 14 pegs, as below.

Just wondered if anyone knows a way to append some standard test to a *.dat
file, without reading the whole thing in, adding to it and then writing the
whole thing back to the file again.
Thanks inadvance for your help

I got this small program.
I would like to be able to reposition the JLables and JTextFields after
the user presses enter in T3 field.  
How can I do it???

I have an InputStream that I got from a Socket from a
ServerSocket.accept(). I am currently using StreamTokenizer to parse
this stream. But I would like to simultaneously save everything that
comes from this stream, unaltered, to some buffer, say a vector of

Hi all, I've got a nice light-weight Java Swing application that I use to
invoke programs using command line invocation (i.e. winword /n blah.doc).  I
use it to open various sorts of word templates, my web browser, an e-mail
application, etc.

whats the best program to use to program java? is it blueJ, jbuilder?? or
just coding into a txt file?

This is a very newbie question on Java.
I am doing the Java tutorials on java.sun.com and came across an
example where I need to compile 3 java files (CreateObjectDemo.java
which uses Point.java & Rectangle.java) at the same time. #Files are

Hi All;
I'm creating a swing app that uses a jTable and I want it to sort when the
user clicks on the header.  I've read the examples at sun and I decided
rather than compare everything in the column to itself, since I'm using a

im trying to create a simple window using blueJ. all i want is an empty
window that says DAVE on it. do goto create class then class. or class then
interface?

   I am in the process of writing a client server
application for a demo. I've done a little C and
Java client server programming before but I have a
problem and need some help.

I am trying to find a solution to my problem I am a newbie and stuck at a
simple problem hope fully some can help
james
__________________________________________________________________ James