Herong's Tutorial Examples

XML Tutorials - Herong's Tutorial Examples
This XML tutorial book is a collection of notes and sample codes written by the author while he was learning XML himself. Topics include introduction to XML, DTD (Document Type Definition), XSD (XML Schema Definition), XPath (XML Path Language), XSL (Extensible Stylesheet Language), XSLT (XSL Transf... 2025-07-18, ≈13🔥, 3💬

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How to know KeyManager given a keystore
'SslReverseEchoer.java - SSL Server Socket Example' tutorial was cited in a JavaRanch forum post in 2012. 2023-10-22, ∼133🔥, 0💬

"secp256r1" - For 256-Bit ECC Keys
This section describes 'secp256r1' elliptic curve domain parameters for generating 256-Bit ECC Keys as specified by secg.org. 2023-10-20, ∼5270🔥, 1💬

💬 2023-10-20 Duy: hello

RSA Public Key Encryption Algorithm
This section describes the RSA public key encryption algorithm. Generating public and private keys used in RSA encryption requires two large prime numbers. 2023-10-16, ∼364🔥, 2💬

💬 2023-10-16 subbarao: thanks for giving wonderful knowledge

Block Hash Calculation Algorithm
This section describes the Block Hash Calculation Algorithm. 2023-10-13, ∼919🔥, 1💬

💬 2023-10-13 00000000034ef34a7d9cb46b44a5473e: 00000000034ef34a7d9cb46b44a5473e9852 4a12f35232ef32387523b3c549da

Geometric Introduction to Elliptic Curves
This chapter provides a geometric introduction of elliptic curves and the associated addition operation. Topics includes what is an elliptic curve and its geometric properties; geometric algorithm defining an addition operation; infinity point or identity element; commutativity and associativity of ... 2023-10-11, ∼864🔥, 2💬

💬 2020-09-12 NA: NA

Corrupted Chinese File Name with Un-ZIP
This section provides a tutorial example to demonstrate a real life example of Chinese text corruption when unzip ZIP archives generated from Chinese Windows systems. 2023-10-06, ∼2175🔥, 1💬

💬 2023-10-06 Catscarlet: This helps a lot. Thanks.

My First HTML Page - hello.html
This section provides a tutorial example on how to create the first Web page with HTML code to test the Tomcat Web server. 2023-09-29, ∼2489🔥, 2💬

💬 2022-07-29 Mr.Local: Not Bad !!!!!

View Account QR Code in MetaMask
This section describes how to view account QR code in MetaMask. 2023-09-26, ≈26🔥, 2💬

💬 2021-12-29 Davco: @ Get Free Ether From faucet.ropsten.be 0x71B149051e29658bccD85297D0CCBDe144 635DEf

Certificate X.509 Standard and DER/PEM Formats
This chapter provides tutorial notes and example codes on certificate content standard and file formats. Topics include X.509 standard for certificate content; DER encoding for certificate binary file format; PEM encoding for certificate text file format; exchanging certificates in DER and PEM forma... 2023-09-26, ∼1372🔥, 2💬

中国农历计算程式
本节介绍了中国农历计算 Java 程式，算法和数据取自 eleworld.com。 2023-09-23, ∼617🔥, 2💬

💬 2023-09-23 杨和荣: lonelyim, 谢谢你的留言！我会在下一次更新时确认和纠正你所指出的错误。农历月份大小有时会受到新月发生的精确时刻的影响，农历2057年9月的新月是一...

💬 2023-09-17 lonelyim: 经与香港天文台发布的公历与农历对照表（ https://www.hko.gov.hk/sc/gts/time/c onversion.htm）对比，发现源程序中char[] chineseMonths的数据有如下...

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. 2023-09-21, ∼3880🔥, 12💬

💬 2022-09-22 abc: thanks

💬 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

content_type() method in the HTTP::Headers Class
This section provides a tutorial example on how to use the content_type() method in the HTTP::Headers class to set the Content-Type header line with 'application/soap+xml'. 2023-09-20, ∼170🔥, 1💬

💬 2023-09-20 Pine Yan: This solves my problem! Thanks

Archived: Get Bitcoin Block Data
This section provides a tutorial example on how to use the Get Bitcoin Block Data operation provided by blockexplorer.com. 2023-09-17, ∼250🔥, 1💬

EC Key in PEM File Format
This section provides a tutorial example on the EC key PEM file format. EC domain parameters are stored together with the private key. 2023-09-17, ∼4251🔥, 1💬

💬 2023-09-17 ecformat: this is to test EC format

Windows Command - "certutil -encode/-decode"
This section provides a tutorial example on how to use 'certutil -encode' command on a Windows system to perform Base64 encoding and decoding. 2023-09-13, ≈33🔥, 8💬

💬 2023-03-12 reuven: BljLekAtpu5P/0tC7W2A/kGfa0pIz5LV52xj KwDtM3Ne04Z39D69GFqZ3qTfTBLAKMbZuJx5 /rST7L7VVpdp/RH6Cjcw5/dhmAuRzhWGOyFq d3p/b8YOj8A8DvwUF8bg...

💬 2022-09-28 Amol: MIIDFDCCAfwCAQAwgZIxCzAJBgNVBAYTAkFV MQwwCgYDVQQIDANWSUMxEjAQBgNVBAcMCU1lbGJvdXJuZTEaMBgGA1UECgwRTW9u ZXkgYnkgQWZ0ZXJwYXkxHDAaBgN...

💬 2022-07-21 Herong: R, thanks for the correction.

💬 2022-07-20 R W: "Base64 with not line breaks" should be"Base64 with no line breaks"

Archived: Get Bitcoin Transaction Data
This section provides a tutorial example on how to use the Get Bitcoin Transaction Data operation provided by blockexplorer.com. 2023-09-10, ∼340🔥, 1💬

💬 2023-09-10 k: yes

Download and Install JDK on macOS
This section provides a tutorial example on how to download and install the latest version JDK, which contains the HotSpot JVM, on a macOS system. A simple Java program was entered, compiled, and executed to verify the JDK installation. 2023-09-09, ≈97🔥, 61💬

💬 2023-09-09 Anthony: great

💬 2023-05-13 james: oki

💬 2022-01-10 G.S.S.VARAPRASADRAO: cool

💬 2021-11-15 thang: that geart

💬 2021-06-08 anil: thanks

(More comments ...)

UTF-8 Encoding Algorithm
This section provides a tutorial example on how to write a programming algorithm to encode characters with UTF-8 encoding. 2023-09-08, ∼8985🔥, 8💬

💬 2023-07-22 Ian Brooke: If you're going to include pseudo code like that you need to define exactly what the different symbols do as they mean different...

💬 2023-02-01 Abdelrahman: Thank you very much!

💬 2023-01-31 Herong: Abdelrahman, you can read the " UTF-8 Encoding " section. It contains UTF-8 encoding requirements and example. The 6-bit shiftin...

💬 2023-01-29 Abdelrahman: Thank you for this, Herong! The algorithm is simple and clear to understand. The one part that I don't understand is why it uses...

💬 2019-09-27 Andrew Dillon: This was very useful. It really helped clarify the explanation in the Unicode Specification. Thank you!

(More comments ...)

My First JSP Page - hello.jsp
This section provides a tutorial example on how to create the first JSP page with JSP code to test the JSP support of the Tomcat Web server. 2023-09-08, ∼7812🔥, 4💬

💬 2021-11-21 Cyp: <html><body> <% out.println("Hello world! -- From JSP"); %> </body></html>

💬 2019-07-10 s: hello

"geth" Commands for Ethereum Accounts
This section describes 'geth' commands to manage Ethereum accounts. 2023-09-08, ∼2455🔥, 2💬

💬 2023-09-08 Richard Radigan: I want to test let me in

Space Character not Allowed in Cookie Value
This section provides a tutorial example showing that space character ' ' is not allowed in cookie value strings. 2023-09-03, ∼1753🔥, 2💬

💬 2023-09-03 GlitterJob: It Worked thanks!!!!!!!

💬 2021-10-28 Hasnaa Ibraheem: You may add the tag in the first answer to your context.xml it fixed the issue for me https://stackoverflow.com/questions/ 386960...

Base64URL Encoding Algorithm
This section describes the Base64URL encoding algorithm, which is a variation of the standard Base64 encoding algorithm with 2 characters 2 characters '+/' replaced by '-_'. 2023-08-27, ∼2373🔥, 2💬

💬 2023-08-27 jozo: test b64

PHP 5.6 and PHPMailer 5.2
This section provides a tutorial example on how to install PHPMailer 5.2 in CentOS 8 for PHP 5.6 to send out emails to remote STMPS server. 2023-08-24, ∼2686🔥, 2💬

Downloading and Installing XML Notepad
This section provides a tutorial example on how to download and install XML Notepad 2007 on Windows systems. 2023-08-24, ∼1819🔥, 3💬

💬 2023-08-24 hany: thanks

💬 2018-12-27 Raj: Thanks

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