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What Is SHA1 Message Digest Algorithm?
This section describes what is SHA1 (Secure Hash Algorithm 1) - a message digest algorithm which takes as input a message of arbitrary length and produces as output a 160-bit 'fingerprint'.
2017-12-09, 5062👍, 6💬

💬 2017-12-09 Herong: See the next tutorial: SHA1 Message Digest Algorithm Overview.

💬 2017-12-04 V: where can we find sha-1 formula ?

💬 2016-01-16 raza: i am raza see you latter

💬 2015-10-10 Herong: Ash, the next tutorial may help you understand better: SHA1 Message Digest Algorithm Overview

💬 2015-10-09 Ash: Please can u explain clearly..I dint understood

(More comments ...)

"for-each" - Looping through a Node Set
This section describes the 'for-each' element, which is used in the content of a 'template' element. The 'for-each' element is a loop statement that be used to repeat a block of output content over each node in a node set.
2017-04-09, 5025👍, 3💬

💬 2016-10-06 Herong: Bart, Thanks for pointing out the errors. They are fixed now.

💬 2016-10-04 Bart: &lt;xsl:for-each select="text()"/> XSL statements &lt;/xsl:for-each> is no legal xml. You end your for-each tag in the b...

Java Swing Tutorials - Herong's Tutorial Examples
This free Java Swing tutorial book is a collection of notes and sample codes written by the author while he was learning Java Swing himself. It can be used as a tutorial guide for beginners or a reference book for experienced developers. Topics include AWT, button, Chinese, component, event, frame, ...
2016-09-04, 5022👍, 1💬

💬 2016-09-04 JM Cerda: So meaningful.

A Sample WSDL 2.0 Document
This section describes a sample WSDL 2.0 document, which defines a Web service, helloService, with an operation called Hello.
2016-03-11, 5012👍, 1💬

💬 2015-08-12 Vivek: Hello fighter

UTF-16, UTF-16BE and UTF-16LE Encodings
This chapter provides notes and tutorial examples on UTF-16, UTF-16BE and UTF-16LE encodings. Topics including encoding and decoding logics of UTF-16, UTF-16BE and UTF-16LE encodings; introduction of surrogate pairs; explanation of the use of BOM (Byte Order Mark).
2019-09-24, 4981👍, 4💬

💬 2019-08-09 asas: Haga contacto con su administrador del sistema si desea obtener más información

💬 2017-04-06 kl: 21 53 93 68 87 65 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 31 00 30 00 31 00 32 00 30 00 30 00 30...

Feedback on the Comment Module
The comment module on this Web site was extended from the original guestbook tool. If you have any feedback, please share it here.
2015-09-14, 4936👍, 26💬

💬 2015-09-14 Herong: The original guestbook has been retired as of Sep. 12, 2015.


💬 2009-03-19 Bharat: Hi it really good guestbook i have seen. good job.

💬 2008-10-25 Biphendpoenda: Another test

💬 2008-07-02 Brin: Hello, nice site :)

(More comments ...)

Declaring Root Elements - "element" Element
This section describes a tutorial example on how to use the Element Declaration Component to declare the root element for a conforming XML document.
2018-08-29, 4872👍, 6💬

💬 2018-08-29 google: &lt;a href="http://google.com">Google& lt;/a>

💬 2018-08-29 rock: Great

💬 2017-03-19 Jay: Thanks dude...

💬 2016-02-02 Herong: Shashi, XML schema does not support unbounded root elements. Only one single root element is allowed. So your schema example is ...

💬 2016-02-01 Shashi: Can you have a root element, which is unbound? Like as follows? Can you please let me know if it valid?

Main Features of XML
This section provides a quick description of XML features and advantages. The power of XML comes from its simplicity and extensibility.
2017-11-26, 4872👍, 2💬

💬 2017-11-26 Abhishek: Thanks!

Enable/Disable Services with "msconfig.exe"
This section describes a tutorial example on how to enable or disable a predefined service with the system configuration tool 'msconfig.exe'.
2016-06-27, 4870👍, 4💬

💬 2016-06-27 Herong: Sam, True. You should not disable all services. I will add a warning in the next update. Thanks.

💬 2016-06-25 sam: Should mention not to disable all services incl ms coz pc wifi and and network setting off and unable to used net.

💬 2015-12-04 Herong: Don, if a service has a status of "stopped", then it is not running on the system. You can leave it there as is. Or you can foll...

💬 2015-12-04 Don Pendleton: Many drivers and other items say stopped and following your instructions does not change them. The stopped word stays the same. ...

"keytool" Commands and "keystore" Files
This chapter provides tutorial notes and example codes on the 'keytool' command. Topics include introduction of public key certificates, 'keystore' file, 'keytool' command; generating new keys and self-signed certificates; exporting and importing certificates; cloning certificates to share keys.
2015-11-23, 4857👍, 3💬

💬 2015-08-10 mike: Cool

Downloading and Installing JRockit R28.2.7
This section provides a tutorial example on how to download and install Oracle JRockit 6 R28.2.7 on Windows systems.
2018-10-11, 4835👍, 2💬

💬 2018-10-11 cxtr: tanks good

UserInit - Winlogon Registry Key
This section provides a tutorial example on how to undo changes done by the PWS Trojan on the UserInit registry value under the HKLM\Software\Microsoft\Window sNT\CurrentVersion\Winlogon registry key.
2016-02-25, 4833👍, 2💬

💬 2015-10-22 Herong: Hi John, you are right that we need keep the comma at the end. Tutorial will be updated in the next version. Thanks.

💬 2015-10-21 John: You have left the comma off!! It is important you do not forget the comma or your computer will not boot. Userinit=C:\WINDOWS\sy...

javax.net.debug - Debugging SSL Socket Communication
This section provides a tutorial example on how to use JVM property, javax.net.debug, to turn on the SSL socket communication debug option. The debug output message can help you to know what exactly happens at the SSL layer.
2017-03-02, 4738👍, 2💬

DsaSignatureGenerator.java - Generating DSA Digital Signature
This section provides tutorial example on how to generate a digital signature for a message file with a DSA private key using the SHA1withDSA algorithm.
2017-03-13, 4666👍, 5💬

💬 2017-03-13 dingdong: heheheheehhe

💬 2016-10-15 Herong: Akash, can you check to ensure your key is a DSA key?

💬 2016-10-14 Akash: Exception occurs as follows: java.security.spec.InvalidKeySpecExc eption:Inappropriate key specification what it means? can you ...

Inputting Chinese Text to MySQL Database in UTF-8
This section describes how to take Chinese text from Web form and store it in MySQL database in UTF-8 encoding.
2017-05-09, 4652👍, 7💬

💬 2017-01-03 wade: 你好

💬 2016-07-22 正繁體字 ñ Jú: 正繁體字 ñ Jú

PHP Tutorials - Herong's Tutorial Examples
This free PHP tutorial book is a collection of notes and sample codes written by the author while he was learning PHP himself. It can be used as a tutorial guide for beginners or a reference book for experienced developers. Topics include PHP, array, CGI, CLI, class, cookie, database, directory, fil...
2017-07-22, 4626👍, 2💬

💬 2017-07-22 templaeonweb: Hi, i have visited the site and found that this is a good template for making science and research related web sites. Free Scien...

💬 2017-03-04 sheila okakwu: web base designer, needs the tutorial book to be stronger in web design

Drawing Graphics - Using paint() on Frame
This section provides a tutorial example on how to override the paint() method in the javax.swing.JFrame class to draw graphics (a rectangle) on the frame window. This solution is not recommended.
2018-11-04, 4586👍, 3💬

💬 2016-11-12 SuperSasRabushna: I'm super saiyan!!! rabushna!

💬 2016-11-12 Ciciozxz: I think you are the best eu!

This section provides a tutorial example on how to add manifest files to JAR files.
2016-05-12, 4580👍, 1💬

💬 2016-05-12 mps: nice..

GetWeatherByZipCode - Usage Description
This section describes the free Web service GetWeatherByZipCode provided by WebserviceX.NET. GetWeatherByZipCode allows you to retrieve weather forecast information for next 6 days for any given ZIP code in USA.
2016-05-28, 4565👍, 4💬

💬 2016-05-28 Herong: Prince, Thanks for sharing your experience. Are you able to make it work?

💬 2016-05-26 Prince Singh: The web service has been moved to a new location and it giving error. After cracking my brain over finding the mistake i have in...

💬 2015-08-04 Herong: Rupesh, Thanks for pointing out that this free web service has been moved to a new location. I will update the tutorial later.

💬 2015-08-04 rupesh: The wsdl is moved from the server. its giving error: System.Net.WebException: The request failed with the error message: -- &...

"sc.exe" - A Command Line Tool to Manage Services
This section describes the Service Controller (SC) command line tool, sc.exe, which can be used to add new services, or to query, modify, start, stop and delete existing services.
2016-04-06, 4502👍, 1💬

💬 2016-04-06 Ambadas: ya great full command ...

Where Is TOC Located on a CD
This section provides basic information on physical location of TOC (Table Of Contents) CDs.
2017-08-17, 4478👍, 1💬


Best Chinese Music - 中国经典音乐
This is a collection of best and well-known Chinese music works selected by the author. Key words include Chinese, Music, Classic, Best, Well-known, Song, Traditional, Modern, Download, Listen, 中国, 音乐, 歌曲, 经典, 传统, 现代, 下载, 收听.
2017-02-11, 4462👍, 2💬

💬 2017-02-11 Herong: Deyi, which ones are you interested? You can listen to most of them online for free.

💬 2017-02-07 Deyi Hu: Dr. Yang: Is there a way for me to purchase the pieces of music that you have collected here on this page?

Using "adb logcat" Command for Debugging
This section describes how to use the 'adb logcat -v' command option to control the format of log entries. 'adb logcat -v long' dumps all data elements of each log entry.
2016-08-02, 4442👍, 2💬

💬 2016-08-02 Herong: jayakrishna, I don't think Android is recording log entries in microsecond accuracy.

💬 2016-07-22 jayakrishna: here logcat is having milli sec accuracy, is it possible to get in micro seconds?

Retrieving CLOB Values with getClob() Method
This section describes how to retrieve CLOB values with the ResultSet.getClob() method.
2018-09-20, 4397👍, 2💬

💬 2018-09-20 sdsfsdfs: hello its me

💬 2015-12-04 asdadsads: hello its me

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