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"keytool" Exporting Certificates in DER and PEM
This section provides a tutorial example on how to export certificates in DER and PEM format using the 'keytool -exportcert' command.
2019-02-20, 21548👍, 5💬

💬 2019-02-20 Ajay Singh: Ok

💬 2018-10-06 Herong: Srinivas, what are those special characters? Are they appended to the keystore file or the certificate file?

💬 2018-09-25 Srinivas: After generating certificate, there are some special characters appended.

💬 2016-06-27 Herong: Mandar, can you double check your command? The error indicates you entered a wrong password.

💬 2016-06-23 Mandar: converting to der is sucessful. while converting to pem, I am getting below error. keytool error: java.io.IOException: Keystore ...

"native2ascii -encoding" - UTF-8 to \udddd Conversion
This section provides a tutorial example on how to convert UTF-8 character strings to \udddd Unicode code sequences with the 'native2ascii -encoding' command.
2019-02-18, 115👍, 2💬

💬 2019-02-18 What: alert("hii")

💬 2019-02-18 Hii: alert("hello")

'native2ascii' - Native-to-ASCII Encoding Converter
This chapter provides tutorial notes on the native-to-ASCII encoding converter 'native2ascii'. Topics include 'native2ascii' command options, default encoding CP1252 used by 'javac', converting UTF-8 characters into \udddd Unicode code sequences, converting \udddd sequences back to native encodings.
2019-02-18, 2851👍, 25💬

💬 2019-02-18 Hello: alert.window ('hello')

💬 2019-02-17 00: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2019-01-29 dasad: É = -~-~[], ó = -~É, Ë = É << É, þ = Ë + ~[]; Ì = (ó - ó)[Û = ('' + {})[É + ó] + ('' + {})[ó - É] + ([].ó + '')[ó...

💬 2019-01-21 pirulo: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2019-01-21 Herong: zerzer, that seems to be a new version of the old JavaScript code...

(More comments ...)

Cryptography Terminology
This section provides descriptions on some commonly used cryptography terminologies
2019-02-18, 2310👍, 2💬

💬 2019-02-18 Hh:

💬 2015-10-24 dexter aparicio: this site is my favorite reference on cryptography topics

AES Key Schedule Example
An example of the AES key schedule is provided to illustrate how 11 round keys get calculate from a given 128-bit cipher key.
2019-02-18, 106👍, 1💬

💬 2019-02-18 Ggf: hello

ReadParse() - Parsing Web Form Input Values
This section describes functions provided in the CGI library, cgi-bin.pl. It also provides a tutorial example on how to use the ReadParse() to parse Web form input values and other functions.
2019-02-16, 1643👍, 6💬

💬 2019-02-16 tak: test comment

💬 2018-10-08 asdf: good

💬 2017-08-29 gerry: coo tutorial

💬 2015-10-30 Herong: Thank you, Yair. Your comment shows that form input values are processed correctly on my site for Hebrew language.

💬 2015-10-21 יאיר: שלום

Comments on Herong's Tutorial Books
Please share your general comments on my tutorial books here. Comments should not contain hyperlinks to any external Web sites.
2019-02-15, 55007👍, 187💬

💬 2019-02-15 Julia: Nice website!

💬 2017-01-05 SOOZEE PALAMINOV: Dr. Herong ... I am super IMPRESSED with this website ... I found it by accident ... Greatly appreciated and Thank You very Much...

💬 2016-02-12 krishna: type conversion topic with example: [URL removed]

💬 2016-01-17 Herong: @EnigmaVariation0, The current year, 2016 CE (Common Era), also called AD (Anno Domini) 2016) is Chinese AH (Anno Huángdì) 4713....

💬 2015-12-31 Herong: @EnigmaVariation0, thanks for your comment. I will double check the Chinese year #.

(More comments ...)

"java --list-modules" - Listing Modules in JDK
This section provides a tutorial example on how to use 'java --list-modules' command to list all modules included in the JDK installation.
2019-02-14, 115👍, 1💬

💬 2019-02-14 felix lee: The line "C:\herong>javac --list-modules" should be "C:\herong>java --list-modules". s/javac/java/

Chinese Character Set Encoding Options
This section providing information on character set encoding options for Chinese Web pages: UTF-8, GB, and Big5
2019-02-12, 112👍, 1💬

💬 2019-02-12 你好: 你好

Android Debug Bridge (adb) Tool
This section describes 'adb install' and 'adb uninstall' commands that allows you to install an application APK package and uninstall it on the connected emulator or device.
2019-02-12, 6443👍, 4💬

💬 2019-02-12 jack: thanks.

💬 2017-04-15 Herong: Joy, If you want to close the command prompt window, just click the "x" on the top right corner of the window. Did you successfu...

💬 2017-04-13 Joy Walter: I have tried the above but the Command Prompt window opened by Android SDK still exists. I am trying to uninstall, can you help?

💬 2016-03-11 Unknown: Thanks

XML Tools Plugin for Notepad++
This chapter provides notes and tutorial examples on XML Tools Plugin for Notepad++. Topics include downloading and installing Notepad++ and XML Tools Plugin; generating pretty print XML format; XSD validation; XSLT transformation.
2019-02-11, 118004👍, 63💬

💬 2019-02-11 aaa: correcto...

💬 2019-02-07 Ralph Stålberg: Need to format xml to be able to read it

💬 2019-01-21 Herong: lakshmisha, what is this XML document for?

💬 2019-01-14 lakshmisha: &lt;div class="modal-content"> &lt;div class="modal-header"> &lt;h3>Complete (testtype) Results&lt;/h3> &lt;...

💬 2018-12-08 Herong: Phill, I will update this soon. Thanks.

(More comments ...)

GB2312 Tutorials - Herong's Tutorial Examples
This free book contains Herong's notes and tutorial examples on Chinese GB2312 character set. It provides a mapping table of all GB2312 characters, native codes, corresponding Unicode codes and UTF8 codes. The Java program source code that produces the mapping table is also included. Topics include ...
2019-02-08, 10247👍, 6💬

💬 2018-07-06 Sureqiqi: difficult to find

💬 2018-07-06 Sureqiqi: 谢谢

💬 2018-07-06 Sureqiqi: Help me a lot

💬 2016-07-14 Herong: Hi James, you can try my Chinese-Pinyin Translator. But it only covers GB2312 Chinese characters. My email address is on the PDF...

💬 2016-07-07 James Lin: Hi Dr. Yang, may I know if you can point me to some useful resource to obtain a listing of the actual pinyin keystrokes for all ...

Example Java Class Converted from a JSP Page
This section provides a tutorial example Java class converted by Tomcat 7 from the JSP page, Hello_Scripting.jsp. Scripting elements included in the JSP page are converted correctly.
2019-02-07, 2410👍, 2💬

💬 2019-02-07 Balaji: Good

💬 2016-01-14 abc: hello

Base64 Encoding Algorithm
This section describes the Base64 encoding algorithm with some simple encoding examples.
2019-02-02, 8756👍, 16💬

💬 2019-02-02 Herong: maher, you can decode it manually. For example, the first 4 bytes can be decoded to 3 bytes, 0x9d873d: base64: n, Y, c, 9 decima...

💬 2019-01-30 maher: how can i decode nYc9rsn50kvkUaZ i try many sites that decode base64 no result

💬 2018-01-12 Name: meaningful comments

💬 2017-10-20 b: gfgfg

💬 2017-08-28 bbb: Please write meaningful comments. Thanks! ☺

(More comments ...)

c:out Action Tag
This section describes the c:out action tag in the JSTL Core library. c:out allows you to generate a dynamic data using an EL (Expression Language) expression in JSP pages.
2019-01-30, 107👍, 1💬

What Is a Digital Signature?
This section describes what is a digital signature and what is the process of generating and verifying digital signature from a message.
2019-01-29, 2593👍, 2💬

💬 2019-01-29 nilo: Hola

💬 2016-04-26 santosh patil: Its easy to understand

GetGeoIP - Get Country by IP Address
This chapter provides a quick introduction of the free Web service, GetGeoIP, returning the country information with a given IP address. Topics include usage description of GetGeoIP; request message sample; response message sample.
2019-01-29, 118👍, 1💬

💬 2019-01-29 WEfgwrg: Nice

PDF Printing Version: JVM Tutorials
Information on how to obtain the PDF version of this book for printing.
2019-01-28, 1398👍, 11💬

💬 2019-01-28 Luke: Thanks

💬 2016-12-05 Rahul: very good

💬 2016-11-07 bob: thanks.

💬 2016-09-29 Awanputih: Thanks a bunch

💬 2016-06-21 Moxing: thanks

(More comments ...)

1953 - Bai Niao Chao Feng (百鸟朝凤) - Hundreds Birds Worshipping The Phoenix
Bai Niao Chao Feng (百鸟朝凤) - Hundreds Birds Worshipping The Phoenix, Suona (唢呐) Solo, composed by Ren Tongxiang from folk tunes (任同祥). Originally performed by Ren Tongxiang (任同祥).
2019-01-28, 130👍, 2💬

💬 2019-01-28 : 真好听

💬 2019-01-24 Logan “Arius” Sherwin: Thanks! :)

Downloading and Installing Notepad++ with XML Tools
This section provides a tutorial example on how to download and install Notepadd++ on Windows system; and how to add the XML Tools Plugin in Notepadd++.
2019-01-26, 124195👍, 63💬

💬 2019-01-26 Herong: HG, Thanks for sharing the download link!

💬 2019-01-22 HG: For anyone who doesn't want to use Plugin Manager, you can also download files directly from: https://sourceforge.net/projects/n.. .

💬 2018-11-28 Herong: Priya, can you follow instructions provided by Steve Chambers in the "How to install a Notepad++ plugin offline?" stackoverflow ...

💬 2018-11-22 Priya: Downloaded XML tools plugin since the server proxy didnt allow me to install it thru notepad++. Is there a way that I can instal...

💬 2018-10-22 Nikhil: Thanks, It helped!!

(More comments ...)

GetCitiesByCountry - Usage Description
This section describes the free Web service GetCitiesByCountry provided by WebserviceX.NET. GetCitiesByCountry allows you to retrieve all cities for any given country or territory.
2019-01-26, 2373👍, 3💬

💬 2016-01-16 Egypt: Thanks

💬 2015-11-10 Juan: United States

Downloading and Installing Java DB (Derby)
This section describes how to download and install Java DB (Derby database server) 10.11 - free for evaluation.
2019-01-25, 5482👍, 11💬

💬 2019-01-25 denzel mana-ay: putangina mo wala akong makita

💬 2018-05-10 Anonomyus: tanks

💬 2016-02-19 Ali: Good App

💬 2016-02-02 kotyba: very nice

💬 2016-02-02 kotyba: thanks

(More comments ...)

Downloading and Installing JDK 1.8.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.8.0 (Java SE 8), which contains the HotSpot 1.8 JVM, on a Windows XP system. A simple Java program was entered, compiled, and executed with the new JDK installation.
2019-01-21, 53368👍, 40💬

💬 2019-01-21 shubhamsaini: kgnhrioe;lmgij gege

💬 2018-04-08 subhan: plz download

💬 2017-11-22 saghar: Thanks

💬 2017-11-04 ali: thanks for file

💬 2017-10-16 jahan zeb: no comment

(More comments ...)

Validating ds:Signature with X.509 Certificate
This section provides a tutorial example on how the SOAP message receiver should validate the digital signatures included in the ds:Signature elements. Digital signatures should be decrypted using public keys included in X.509 certificates passed in the wsse:BinarySecurityToken element.
2019-01-21, 275👍, 5💬

💬 2019-01-21 Herong: 喝着茅台,看什么应该都不错... ☺

💬 2019-01-17 茅台酒: 用谷歌翻译看你的教程真好

💬 2018-10-21 Jacek: I configure was security with security token and partial signing of body and one more node. Next trying to validate this signatu...

💬 2018-10-20 Herong: Jacek, I will try it.

💬 2018-10-19 Jacek: hi you wrote Use msgReference to match a message element with "[@wsu:Id]=msgReference", and parse the message element to a DOM o...

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