I'm trying to implement the MD5 algorithm. (Note: I'm not looking for an
existing MD5 library; this is an exercise). It compiles and returns
something that looks like a hash superficially, but that's clearly the
wrong result. Even if there were a Unicode/Ascii problem, the empty

Sorry ,everyone ,i'm new to Java.
 If i wannt first search with the xml file to get the right
position , then extract the corresponding xml
item after that .

For those interested in <b>programming riddles</b>, I would like to
announce a new programming challenge I'm just launching at
http://software.challenge.googlepages.com
This challenge is in its early stage and thus set to be continuously

As we all know,System.exit(0) is often used to quit the program.
But when it applied to some of my programs,the outcome was not so.
I created a frame using class JFrame.Then I registerd WindowsAdapter on
the close action,and here came the problem:

I have a webservice named thewebservice and it work ok in windows.
When I copy it from the webapps of windows to the webapps of linux I
can't see it.
Infact visiting the url http://localhost:8080/thewebservice/services

// BEGIN TESTURL CLASS
import java.io.*;
public class TestURL {
 static boolean listening = true;

I have a JSF application where a dataTable has multiple editable
options (inputText, SelectBox, CheckBox, etc)
I want to capture all of changes for these values when I submit to my
back-end bean.

I am having an issue trying to update the timezone on a
GregorianCalendar instance.  I tried this code sample on a couple of
different systems, all with the same result.
This code basically does four things.

Suppose I have this two classes:
class ShoppingCart {
 addBook(Book book){}
 removeBook(Book book) {}

In our java webapp (jfdk 1.4.2 and Tomcat 4 on an Windows 2003 Server)
we have a class, which calls an externel programm as a OS process. But
the exit code is 128. Always !!! If we execute the command in die
Windows Command Line directly, everythink works fine.

Gas Used                         Rate
First 100 cubic meters    $5.00 minimum cost
Next 200 cubic meters    4 cents per cubic meters
Next 200 cubic meters    2 cents per cubic meters

I need to strip all of the pipe-characters of a string. normally I
would use something like:
str.replaceAll("the-char-i-want-to-replace", "");
But from some reason: str.replaceAll("|", "") do not alter the string.

Plz  can someone explain the difference between static final variable
and final instance variable
regarding their initilisation: in particular : I noticed that if we
leave a final INSTANCE variable non initialised, the code will compile

why my scripts is wrong, i have declare the cost..why i still got
error
// How much it cost for the gas to be consumed per cubic meter
  import java.util.Scanner;

which is the best book to learn java . I already have 2 plus of exp as
developer , DBA in oracle Applications - but need to switch to java
now . Please guide me in knowing which is the best book to learn
java .