Herong's Tutorial Examples

Free Chinese Calendar 2026 - Year of the Horse
Want to know when is the 2026 Chinese New Year day? Look for free Chinese calendars for 2026? Chinese New Year Date for Year 2026 ⇒ Free Chinese Calendar 2027 - Year of the Goat ⇐ Free Chinese Calendar 2025 - Year of the Snake ⇑ Chinese New Year Dates in 2021 to 2030 ⇑⇑ Free Chinese Calendars 2026-02-17, ≈159🔥, 1💬

💬 2026-02-17 Mariah Carey: Thanks

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H (Hybrid) Language
This free book is a collection of notes on developing a new programming language called H (Hybrid). 2018-01-21, ∼2069🔥, 1💬

💬 2017-10-18 Evan: I like it!

"openssl enc" Converting Keys from Binary to PEM
This section provides a tutorial example on how to convert a private and public key pair stored in binary PKCS#8 format into PEM (Privacy Enhanced Mail) format with the 'openssl enc' command. 2018-01-20, ∼7066🔥, 2💬

💬 2018-01-20 Herong: Dan, Thanks for comment. The "-inform" and "-outform" options are definitely better options. This tutorial will be updated.

💬 2018-01-17 Dan Lukes: openssl dsa understands binary key's format as well. Just claim it using option '-inform DER'. Moreover, 'openssl dsa -inform DE...

cgi-lib.pl - The Standard Library for CGI Scripts
This section describes the de facto standard library, cgi-bin.pl, for Perl CGI scripts. It also provides a tutorial on how to download and install cgi-bin.pl 2.18 to the Apache server on a Windows system. 2018-01-20, ∼1412🔥, 2💬

💬 2018-01-20 Herong: Nils, Thanks for your comments. I will include them in the next update.

💬 2018-01-09 Nils Kammenhuber: DON'T use cgi-lib.pl! It is horribly outdated, the last version is from 1999, and it is said to have security issues. Instead, u...

java.time.Duration - Time Durations
This section describes the java.time.Duration class that represents a duration of time measured in seconds with fractions in nanosecond resolution. 2018-01-03, ∼1123🔥, 1💬

💬 2018-01-03 Nikhil Narayanan: Helpful man....but I already knew the stuff....the presentation is simple..nice! JAVA is great, right!

2-Step Message Encryption - Symmetric and RSA
This section describes how SoapUI performs the SOAP message entryption in 2 steps: encrypt the SOAP message with random secret key and encrypt the secret key with receiver's RSA public key. 2017-12-31, ∼729🔥, 1💬

💬 2017-12-31 Alex-RU: Thank you, a good man.

Variable Declaration and "Dim" Statement
This section provides a quick introduction of what is a variable and how variable can be declared explicitly with a Dim statement and implicitly with an assignment statement. 2017-12-30, ∼4371🔥, 3💬

💬 2014-12-14 Herong: Peter, Yes, you are correct. DIM is an abbreviation for "Declare in Memory", see " Siebel VB Language Reference " published by O...

💬 2014-12-01 Peter: Ehm DIM stands for "dimension"? Or perhaps it's an abbreviation for "Declare in memory"..

Downloading and Installing SoapUI
This section provides a tutorial example on downloading and installing SoapUI 5.0.0 on Windows system. 2017-12-27, ∼2614🔥, 5💬

💬 2017-12-27 Aldo: 10 Points !

💬 2017-07-25 apple: 急需！！

💬 2015-09-08 Abdul Latheef: Need SoapUI.

💬 2015-07-29 b vijay: good

OpenSSL Introduction and Installation
This chapter provides tutorial notes and example codes on OpenSSL. Topics include introduction of OpenSSL; installing OpenSSL on Windows systems. 2017-12-24, ∼1570🔥, 4💬

💬 2016-11-28 musa: thanks

Most Popular Search Engines
The most popular search engines based on page referral request counts for 196 days of year 2008. 2017-12-14, ∼348🔥, 1💬

💬 2017-12-14 Sherwin Esguerra: Activate and Accelerate Accesses Processes into the Chrome NQXI!Thank You!

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, ∼8187🔥, 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 ...)

XML Editor and Schema Processor - XMLPad
This chapter provides notes and tutorial examples on the free XML editor and XML Schema processor, XMLPad. Topics include installing WMHelp XMLPad Pro, assigning XML Schema to XML documents, validating XML documents, generating XML schema diagram. 2017-12-04, ∼2410🔥, 1💬

💬 2017-12-04 Sreelatha: heard great about XMLPad. Would like to try.

Newton's Third Law of Motion
This section introduces Newton's Third Law of Motion - If a force is exerted by one object to another object, another force is simultaneously exerted by the second object to the first object with equal strength and opposite direction. 2017-11-28, ∼1935🔥, 1💬

💬 2017-11-28 jimmy savile: little kids

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, ∼8500🔥, 2💬

💬 2017-11-26 Abhishek: Thanks!

Introduction of HTTPS (Hypertext Transfer Protocol Secure)
This chapter provides a quick introduction of HTTPS (Hypertext Transfer Protocol Secure). Topics include what is HTTPS; Web server authentication; communication data encryption. 2017-11-15, ∼3730🔥, 3💬

💬 2017-11-15 amal: third visit

💬 2016-04-29 amal: second visit

💬 2016-04-29 amal: first visit

The Celestial Meridian and Zenith
This section describes the celestial meridian and zenith. 2017-11-13, ∼2151🔥, 1💬

💬 2017-11-13 Kudz: Very Helpful!

DSA 512-bit and 1024-bit Key Pair Examples
This section provides 2 DSA key pair examples, 512-bit and 1024-bit, using DsaKeyGenerator.java. 2017-11-08, ∼1616🔥, 1💬

💬 2017-11-08 abc: ok

$instance Statement - Define Instance Template
This section describes the $instance statement for defining instance template. 2017-11-06, ∼279🔥, 1💬

💬 2017-11-06 Vincent: Concept is good!

saveWebArchive() Method - Saving Web Archive Files
This section provides a tutorial example on how to use the saveWebArchive() method to save Web page content in WebView to Web archive files in the application's files folder. 2017-11-05, ∼2719🔥, 2💬

💬 2017-11-05 Herong: Igor, the API document is not very clear if saveWebArchive() is asynchronous method or not. But you can write some print stateme...

💬 2017-11-02 Igor Ganapolsky: Does `saveWebArchive()` have to be done asynchronously on a non-ui thread?

Installing OpenSSL on Windows
This section provides a tutorial example on how to install OpenSSL on a Windows system. 2017-10-29, ≈51🔥, 18💬

💬 2017-10-29 Max: Te possino! How I obtain the .o, .h files to use like include in my .c mail file?

💬 2017-02-03 Jim: Now run along...

💬 2017-02-03 Jim: If I did this just once we would not be even, cause you did it once when you put it up here..

💬 2016-12-19 red: Please write meaningful comments. Thanks!

💬 2016-12-19 Thank: Thanks!

(More comments ...)

Installing Visual GC Plugin
This section provides a tutorial example on how to install the Visual GC plugin to Java VisualVM and monitor GC activities. 2017-10-25, ∼3219🔥, 4💬

Conditional "elseif" Statement
This section describes what is a conditional 'elseif' statement in H language. 2017-10-24, ∼260🔥, 2💬

💬 2017-10-24 Herong: Vijay, $elsif is an option. But I strongly suggest we use full words, no abbreviations. So we don't have to guess.

💬 2017-10-18 Vijay: Why not using "elsif" as the keyword?

Meter Based on Earth's Meridian
This section introduces an old definition of 'meter' which uses the Paris meridian line. A 'meter' is about one ten-millionth of the length of a quadrant of the Paris meridian. 2017-10-08, ∼2973🔥, 2💬

💬 2017-10-08 Herong: Peter, what's the difference between inaccurate and miscalculated?

💬 2017-10-07 Peter: This explanation is incorrect. You are inferring from speed of light definition and assuming a broader sense of “correct” and wo...

GetSunSetRiseTime - Usage Description
This section describes the free Web service GetSunSetRiseTime provided by WebserviceX.NET. GetSunSetRiseTime allows you to retrieve sunrise and sunset times for any given location and date. 2017-10-08, ∼873🔥, 4💬

💬 2017-10-08 Herong: Eduardo, do you need Java code to connect to the server to use the service, or to setup a new sun rise and sun set service?

💬 2017-10-02 Eduardo: Please, I need the code of sunsetriseservice for java netbeans. Thanks...

💬 2016-10-12 Herong: Vassilis, Good question. Can you try the following: return_value = 17.9877033 hour = floor(return_value) minute = floor((return_...

💬 2016-10-10 Vassilis V: Hi, how can we convert the float return to time?

Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other format. 2017-09-29, ∼2726🔥, 5💬

💬 2017-09-29 gloax29: merci

💬 2015-11-20 sameer: good going

💬 2015-09-02 Herong: Dharshan, you can follow tutorials presented at JSSE - Java Implementation of SSL and TLS .

💬 2015-09-01 Dharshan: I want to learn JSSE

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