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 2025-12-23, ≈144🔥, 0💬

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Perl Script Conversion Tools
This section describes why and how to convert Perl script files to executable binary files. ActivePerl Dev Kit and Perl2Exe are two popular conversion tools for Windows systems. 2020-02-29, ∼3178🔥, 6💬

💬 2020-02-29 smith: alert(1)

💬 2019-07-21 Herong: rrr, Thanks for sharing your Perl script. But I don't see any benefit of removing BOM from a Unicode text file. Without BOM, the...

💬 2019-07-20 rrr: # program to remove a leading UTF-8 BOM from a file # works both STDIN -> STDOUT and on the spot (with filename as argument) if ...

💬 2016-03-28 de: ~ m/^p(\d+)_.*\

💬 2016-01-27 Herong: Ram, can you tell us what is the purpose of your Perl script?

(More comments ...)

WADL (Web Application Description Language)
This section describes what is WADL (Web Application Description Language), an XML-based file format that describes REST Web services. 2016-04-19, ∼3178🔥, 1💬

💬 2015-07-21 Vigcky: Hello world

javax.swing.JFileChooser - File Chooser Dialog Box
This section provides a tutorial example on how to use the javax.swing.JFileChooser class to create a file chooser dialog box for the Open command and the Save command. 2016-01-03, ∼3174🔥, 8💬

💬 2016-01-03 Travis: Hello thanks, Yea I fixed the problem with the forgotten import I should have known better just having a problem with the filein...

💬 2015-12-31 Herong: Travis, May be you forget to import the IO package. The "underline in red" means class definition is missing. Try to add the fol...

💬 2015-12-31 Travis: Missing import.java.io was the problem thanks everyone

💬 2015-12-30 Travis: Value is just a string , String rootDir; still have been playing around with it and can't seem to get it going , very odd:(

💬 2015-12-30 Ken: @Travis, what is the value of "rootDir"? Looks like you are trying to get an inputstream on a directory, not a file.

(More comments ...)

科兴生物新冠疫苗 - 生产能力
科兴生物新冠疫苗的生产能力有多强？ 2020年8月底，科兴控股生物技术有限公司旗下北京科兴中维的第一条新冠疫苗原液生产线投入试用，年生产能力可达5亿剂。第二条原液生产线的建设也已完成，预计今年2月投入使用后，将新冠疫苗原液的年生产能力提高到10亿剂以上。科兴中维正在进一步加快建设疫苗的原液和成品生产能力，力争让灌包装能力跟原液产能相匹配。 ... 2021-07-19, ∼3172🔥, 0💬

Chinese Character String with Big5 Encoding
This section provides information on handling Chinese character string literals in Big5 encoding. 2015-09-29, ∼3167🔥, 1💬

💬 2015-09-29 你好: 你好

Block Hash Calculation in Python
This section describes how to calculate Bitcoin block hash in Python. 2023-04-29, ∼3165🔥, 2💬

💬 2018-02-16 Lee: This helped me a lot!

"aapt" - Android Asset Packaging Tool
This section describes 'aapt', the Android Asset Packaging Tool, which can be used to list, add and remove files in an APK file, package resources, crunching PNG files, etc. 2015-11-16, ∼3161🔥, 1💬

Calculate Double-SHA256 Hash with Python
This section describes how to calculate Double-SHA256 hash with Python. 2021-04-11, ∼3152🔥, 2💬

💬 2021-04-11 Max: Great Reference with HEX base, thanks

Data Encoding Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial notes and example codes written by the author while he was learning different data encoding algorithms. Topics include introduction of data encoding algorithms: Base32, Base64, UUEncode; Base64 Encoding Algorithm with W3C Implementation; Base64 Encoding tools an... 2022-03-12, ∼3143🔥, 1💬

💬 2022-03-12 Rishi V: Hi -- How do i buy copyright to the Java implantation of DES encryption / Decryption

Chinese Festivals - Qingming Festival
The Qingming (Pure Brightness) Festival is one of the 24 seasonal division points in China, falling on April 4-6 each year. After the festival, the temperature will rise up and rainfall increases. It is the high time for spring plowing and sowing. But the Qingming Festival is not only a seasonal poi... 2021-12-23, ∼3141🔥, 0💬

MulticastListener.java - A Simple Multicast Listener Program
This section provides a tutorial example on how to write a simple Java test program to join any given multicast group and listen to incoming messages. 2017-07-27, ∼3129🔥, 3💬

💬 2017-07-27 Gustavo: Nice! Meaningful thanks! I just tested in a cluster of JBoss EAP that uses jgroups and multicast.

💬 2017-03-14 anamika: tku very so much

PC Register and Native Method Stack
This section describes PC Registers and Native Method Stacks, which are reserved one per thread. Normal Java applications do not have any significant impact on PC Registers and Native Method Stacks. 2023-07-15, ∼3125🔥, 4💬

💬 2023-07-15 Makhdoom: Great info.

Audio CD (CD-DA) Tracks and Indexes
This section describes the logical format of tracks and indexes of an audio CD (Compact Disc Digital Audio or CD-DA). 2017-08-21, ∼3093🔥, 2💬

💬 2017-08-11 Herong: If (a,b)=(7,10), a will be 7 and b will be 10. There is no other possibilities.

💬 2017-08-08 CAPTCHA TEST: Let (a,b)=(7,10), what is a+b? This could be 17 if a = 7 and b = 10 thus 7+10=17 However if (a,b)=(7,10) means (a,b) is (7,10) t...

"sc.exe query type= driver" - All Device Driver Services
This section provides a tutorial example on how to list all device driver services with 'sc.exe' Service Controller command tool. 2016-10-15, ∼3093🔥, 2💬

💬 2016-10-15 Herong: Jay, I don't know the answer. Hope other visitors can help to explain.

💬 2016-10-14 Jay: How do you interpret this? CHECKPOINT : 0x0

"On Error GoTo 0" - Turning off Error Handling
This section provides a tutorial example on how to use 'On Error GoTo 0' to turn off the error handling flag in a procedure to catch the first runtime error. 2019-12-02, ∼3091🔥, 1💬

💬 2019-12-02 toto: oui

GetStringAsync() Method Example Program
A tutorial example is provided on how to use GetStringAsync() method in the System.Net.Http.HttpClient class to send a GET request in a child thread as am asynchronous operation. 2024-10-27, ∼3083🔥, 3💬

jstack - Detecting Java Thread Deadlocks
This section provides a tutorial example on how to detect Java thread deadlocks with the thread stack trace dump tool, 'jstack'. 2016-02-01, ∼3083🔥, 0💬

Windows 7: Disable Scheduled Tasks
This section provides a tutorial example on how to review tasks that have been scheduled to run on a Windows 7 system in the background and disable any unwanted tasks. 2016-10-20, ∼3081🔥, 4💬

💬 2016-10-20 Herong: Branksome, your right panel is probably turned off. You can turn it on by clicking the last icon below the menu. You can also ac...

💬 2016-10-18 Branksome: On my Win7 system, there is no right panel with an option to delete. What I would prefer to do is reduce the schedule to run les...

💬 2016-03-30 Herong: David, There is a button on "Task Scheduler" to disable all of them. You should not allow any program to be scheduled on your ho...

💬 2016-03-23 David Betts: Hi, I was looking for a solution that disabled all tasks. However I can now find my way around the entries . I think I will leav...

Chinese Festivals: New Year, Dragon Boat, Mid Autumn, ...
Chinese festivals: Chinese Festivals - Spring Festival Chinese Festivals - Lantern Festival Chinese Festivals - Qingming Festival Chinese Festivals - Dragon Boat Festival Chinese Festivals - Double Seventh Festival Chinese Festivals - Chinese Valentine's Day Chinese Festivals - Chihsi (Chinese Valen... 2021-12-17, ∼3080🔥, 0💬

Running PerlApp to Convert *.pl to *.exe
This section provides a tutorial example of running PerlApp from ActiveStat to convert a sample Perl script, DirGrep.pl, to Windows executable binary, DirGrep.exe. 2017-01-14, ∼3071🔥, 2💬

💬 2017-01-14 Herong: Monique, Yes, you run the commands listed in the tutorial at the command prompt.

💬 2017-01-12 Monique: Where do you actually run this???? from command prompt?

Copy PDF File to Android Emulator's File System
This section provides a tutorial example on how to copy PDF files to the Android emulator's file system using the 'adb' tool provided in the SDK package. 2016-04-19, ∼3053🔥, 2💬

💬 2016-04-19 Herong: Pankaj, you are welcome!

💬 2016-04-11 Pankaj Kumar: Thank you so much. It was really helpful for me.

What Is SOAP Encoding
This section provides a quick description of SOAP Encoding and samples of serializing simple and compound value nodes. 2020-09-09, ∼3051🔥, 1💬

💬 2020-09-09 byju: thanks for the tutorial..!

WSDL Message Exchange Patterns
This section describes message exchange patterns defined in WSDL Version 2.0 Part 2: Adjuncts - In-Only, Robust In-Only, and In-Out. 2017-06-22, ∼3046🔥, 5💬

💬 2017-04-30 Sam: Incredible!!.This solution worked like a charm. Thanks a ton.

💬 2016-06-10 shravan: ok

💬 2016-02-12 Herong: Sarah, I don't think WSDL supports multiple input or output messages for an single operation. May be can put "m" and "m1" into a...

💬 2016-02-08 sarah: My name is Sarah and I am a student , during my searches i found this website. i have a problem and i am looking for help 1- Iam...

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, ∼3044🔥, 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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