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Steganography i want the java code for embedding images using auxiliary carry method and modified auxiliary carry method

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U can find it from websites by google .java: embed

which gives list of websites that are enabled

Posted on Mar 15, 2008

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What difference between genricServlet and httpServlet


public abstract class GenericServlet extends java.lang.Object implements Servlet, ServletConfig, java.io.Serializable
  • GenericServlet defines a generic, protocol-independent servlet.
  • GenericServlet gives a blueprint and makes writing servlet easier.
  • GenericServlet provides simple versions of the lifecycle methods init and destroy and of the methods in the ServletConfig interface.
  • GenericServlet implements the log method, declared in the ServletContext interface.
  • To write a generic servlet, it is sufficient to override the abstract service method.
javax.servlet.http.HttpServlet
Signature: public abstract class HttpServlet extends GenericServlet implements java.io.Serializable
  • HttpServlet defines a HTTP protocol specific servlet.
  • HttpServlet gives a blueprint for Http servlet and makes writing them easier.
  • HttpServlet extends the GenericServlet and hence inherits the properties GenericServlet.

May 12, 2011 | Operating Systems

1 Answer

Java WAR file is stored in which location?


It's either in the directory where you unpacked the application you just installed, or under the \java\jre6\lib directory (on Windows), assuming you're running Java 1.6 (or java 6.x). If it's not under the latter, then you should try using Windows Explorer (or that File Folder icon) and open the directory where the application resides. Then just start that program. If that works, then you'll need to modify whatever shortcut or script to include the "-classpath=X" right after the "java" command, where "X" is the full path to the WAR file.

Feb 19, 2011 | Operating Systems

1 Answer

I DONT KNOE THE LANGUAGE SETTING.PLS HELP ME.


HI, Change Language of Operating System there is 3 method:- 1) Install in English Instead of using initramfs for booting eeepc use this modified initramfs image:
http://www.roberto.foglietta.name/pub/xepc/en/initramfs.cpio.gz
This setup English localization only if the firstrun does not happen before and the localization would be written down into read-write partition. So this image is useful only during intallation.
2) Automatic Method locale_dialog can do this for you for English. Go to a terminal: Ctrl-Alt-T and type:
/opt/xandros/bin/locale_dialog
A simple dialog will open with a list of languages. Choose your desired language and press OK buttun (it's the button on the left). The system asks for reboot. Again press OK button (it's the burron on the left). Congratulations!
You may want to uninstall Taiwanese software,or programs, or languagepacks to save diskspace (tested on EeePc701). This does not uninstall the English versions or programs! Go here: http://wiki.eeeuser.com/howto:freespace
The above fails to revert all the dialog boxs to english in eee 701 etc - so see the last paragraph of this help page http://wiki.eeeuser.com/howto:configurefromscratch & change the firstrunwizard and remove the .firstrun file and reboot to an english version eee 701 etc.
3) Manual Method
  1. Start Eee PC
  2. Press Ctrl-Alt-T to open Terminal
  3. Type sudo /usr/bin/oowriter /etc/default/locale &
    (Another editor may be used to modify this file.)
  4. Change line to LANG=en_US.UTF-8
  5. Type sudo /usr/bin/oowriter /etc/locale.gen &
    (Another editor may be used to modify this file.)
  6. Remove the line zh_TW.UTF-8
  7. Type sudo dpkg-reconfigure locales and proceed
  8. press Ctrl-Alt-backspace or Reboot.
It is also possible to change to another language, e.g.
  • Change line to LANG=fr_FR.UTF-8 for French (doesn't work out of the box with these instructions)
  • Change line to LANG=en_GB.UTF-8 for English with UK keyboard-layout
  • Change line to LANG=it_IT.UTF-8 for Italian
  • Change line to LANG=de_GN.UTF-8 for German
  • Change line to LANG=zh_TW.UTF-8 for Traditional Chinese
  • Change line to LANG=zh_CN.UTF-8 for Sim Chinese
More information on language settings can be found in the i18n document.

i hope this will solve your problem.

goodluck

Jan 12, 2011 | Operating Systems

1 Answer

Can anybody tell me how to convert jpg image to its binary form??


may be this link will help you in making a project

http://www.codeproject.com/info/search.aspx?artkw=image+to+binary

Apr 22, 2009 | Microsoft Windows XP Professional

1 Answer

How to write jdbc connections


http://www.jdbc-tutorial.com/

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welcome_title_image.gif Java JDBC Tutorial Java JDBC Tutorial
The JDBC ( Java Database Connectivity) API defines interfaces and classes for writing database applications in Java by making database connections. Using JDBC you can send SQL, PL/SQL statements to almost any relational database. JDBC is a Java API for executing SQL statements and supports basic SQL functionality. It provides RDBMS access by allowing you to embed SQL inside Java code. Because Java can run on a thin client, applets embedded in Web pages can contain downloadable JDBC code to enable remote database access. You will learn how to create a table, insert values into it, query the table, retrieve results, and update the table with the help of a JDBC Program example.


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Although JDBC was designed specifically to provide a Java interface to relational databases, you may find that you need to write Java code to access non-relational databases as well.
JDBC Architecture jdbc.jpg Java application calls the JDBC library. JDBC loads a driver which talks to the database. We can change database engines without changing database code.
JDBC Basics - Java Database Connectivity Steps Before you can create a java jdbc connection to the database, you must first import the
java.sql package.
import java.sql.*; The star ( * ) indicates that all of the classes in the package java.sql are to be imported.
1. Loading a database driver,
In this step of the jdbc connection process, we load the driver class by calling Class.forName() with the Driver class name as an argument. Once loaded, the Driver class creates an instance of itself. A client can connect to Database Server through JDBC Driver. Since most of the Database servers support ODBC driver therefore JDBC-ODBC Bridge driver is commonly used.
The return type of the Class.forName (String ClassName) method is “Class”. Class is a class in
java.lang package.
try { Class.forName(”sun.jdbc.odbc.JdbcOdbcDriver”); //Or any other driver } catch(Exception x){ System.out.println( “Unable to load the driver class!” ); } 2. Creating a oracle jdbc Connection

The JDBC DriverManager class defines objects which can connect Java applications to a JDBC driver. DriverManager is considered the backbone of JDBC architecture. DriverManager class manages the JDBC drivers that are installed on the system. Its getConnection() method is used to establish a connection to a database. It uses a username, password, and a jdbc url to establish a connection to the database and returns a connection object. A jdbc Connection represents a session/connection with a specific database. Within the context of a Connection, SQL, PL/SQL statements are executed and results are returned. An application can have one or more connections with a single database, or it can have many connections with different databases. A Connection object provides metadata i.e. information about the database, tables, and fields. It also contains methods to deal with transactions.
JDBC URL Syntax:: jdbc: <subprotocol>: <subname> JDBC URL Example:: jdbc: <subprotocol>: <subname>•Each driver

Feb 01, 2009 | Microsoft Windows XP Home Edition

1 Answer

How to play audio clip in java


  • Create an AudioClip object
  • Load .au sound file into AudioClip
  • Play sounds once or loop continuously
  • Stop playback


Here's how the code for these steps looks:
import java.applet.*;
AudioClip ac = getAudioClip(getCodeBase(), soundFile);
ac.play(); //play once
ac.stop(); //stop playing
ac.loop(); //play continuously


It would seem logical to use this same code to play audio clips in a Java application. Unfortunately, if you do that you will get errors from the compiler. Why? Because the AudioClip object and the getAudioClip() method are part of the java.applet package -- and are not part of applications. The good news is we can dive down and make things work ourselves.
The trick to solving this problem is to use some undocumented features that are provided by Sun in its JDK. Taking a peek inside the classes.zip file from the Sun JDK (using any of the various zipfile utilities), we find not only the standard Java packages such as java.applet but also sun.audio. (These are in the directory sun/audio.)
The sun.audio package contains everything we need to be able to play audio clips! Here's the code:
import sun.audio.*; //import the sun.audio package
import java.io.*;
//** add this into your application code as appropriate
// Open an input stream to the audio file.
InputStream in = new FileInputStream(Filename);
// Create an AudioStream object from the input stream.
AudioStream as = new AudioStream(in);
// Use the static class member "player" from class AudioPlayer to play
// clip.
AudioPlayer.player.start(as);
// Similarly, to stop the audio.
AudioPlayer.player.stop(as);


To use a URL as the audio stream source, substitute the following for the input stream and audio stream setup:
AudioStream as = new AudioStream (url.openStream());


Playing the audio stream continuously adds a bit more complexity:
// Create audio stream as discussed previously.
// Create AudioData source.
AudioData data = as.getData();
// Create ContinuousAudioDataStream.
ContinuousAudioDataStream cas = new ContinuousAudioDataStream (data);
// Play audio.
AudioPlayer.player.play (cas);
// Similarly, to stop the audio.
AudioPlayer.player.stop (cas);

Jan 22, 2009 | Operating Systems

4 Answers

What is the difference between Java editor and Java software?


java editor is a text editor which probably understands java language synthax and can automatically call java to compile your code.
Java software is a program written in Java programming language which is interpreted/executed by JVM(JAva virtual machine) on a target computer.
Your question is a rough equivalent to : What is a difference between typewriter and a recipe book written in English language

Jan 21, 2009 | Microsoft Windows Vista Ultimate Edition

1 Answer

Yahoo messenger


Sounds like a boot script. Yahoo Chat is a huge security risk to your machine and there isn't much you can do about it. The chat allows code to execute through the chat window to allow graphics and attachments to be seen and embedded during chat.

Personally, I use the java chat client for Yahoo or Trillian and they seem to be immune. But they have limited features too for that very reason. If all you do is chat though, its a safe compromise.

Sep 08, 2008 | Microsoft Windows XP Home Edition

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